diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 66ab49e75c7279e6eeca8ddd988298a751d6c945..eb0554009d96fec4acbd906420d53c5b5b5b289d 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -96,6 +96,8 @@ import { GenericDataDialogComponent } from './components/dialogs/generic-data-di
 import { FooterComponent } from './components/fragments/footer/footer.component';
 import { FooterLoginDialogComponent } from './components/dialogs/footer-login-dialog/footer-login-dialog.component';
 import { FooterImprintComponent } from './components/pages/footer-imprint/footer-imprint.component';
+import { CollectionSelectComponent } from './components/dialogs/collection-select/collection-select.component';
+import { AddCollectionComponent } from './components/dialogs/add-collection/add-collection.component';
 
 export function dialogClose(dialogResult: any) {
 }
@@ -144,7 +146,8 @@ export function dialogClose(dialogResult: any) {
     GenericDataDialogComponent,
     FooterComponent,
     FooterLoginDialogComponent,
-    FooterImprintComponent
+    FooterImprintComponent,
+    CollectionSelectComponent
   ],
   entryComponents: [
     RegisterComponent,
@@ -161,7 +164,8 @@ export function dialogClose(dialogResult: any) {
     ContentDeleteComponent,
     MarkdownHelpDialogComponent,
     GenericDataDialogComponent,
-    FooterLoginDialogComponent
+    FooterLoginDialogComponent,
+    CollectionSelectComponent
   ],
   imports: [
     AppRoutingModule,
diff --git a/src/app/components/dialogs/collection-select-component/collection-select-component.component.html b/src/app/components/dialogs/collection-select-component/collection-select-component.component.html
new file mode 100644
index 0000000000000000000000000000000000000000..8eb205d142af9c1deef206b3b1e66692ae232488
--- /dev/null
+++ b/src/app/components/dialogs/collection-select-component/collection-select-component.component.html
@@ -0,0 +1,3 @@
+<p>
+  collection-select-component works!
+</p>
diff --git a/src/app/components/dialogs/collection-select-component/collection-select-component.component.scss b/src/app/components/dialogs/collection-select-component/collection-select-component.component.scss
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/app/components/dialogs/collection-select-component/collection-select-component.component.spec.ts b/src/app/components/dialogs/collection-select-component/collection-select-component.component.spec.ts
new file mode 100644
index 0000000000000000000000000000000000000000..763f10321f275597f304653d9815bd4885025673
--- /dev/null
+++ b/src/app/components/dialogs/collection-select-component/collection-select-component.component.spec.ts
@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CollectionSelectComponentComponent } from './collection-select-component.component';
+
+describe('CollectionSelectComponentComponent', () => {
+  let component: CollectionSelectComponentComponent;
+  let fixture: ComponentFixture<CollectionSelectComponentComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ CollectionSelectComponentComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(CollectionSelectComponentComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});
diff --git a/src/app/components/dialogs/collection-select-component/collection-select-component.component.ts b/src/app/components/dialogs/collection-select-component/collection-select-component.component.ts
new file mode 100644
index 0000000000000000000000000000000000000000..570dc1caab270f0f206c2b952abbdc7b1622d488
--- /dev/null
+++ b/src/app/components/dialogs/collection-select-component/collection-select-component.component.ts
@@ -0,0 +1,15 @@
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-collection-select-component',
+  templateUrl: './collection-select-component.component.html',
+  styleUrls: ['./collection-select-component.component.scss']
+})
+export class CollectionSelectComponentComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}
diff --git a/src/app/components/dialogs/collection-select/collection-select.component.html b/src/app/components/dialogs/collection-select/collection-select.component.html
new file mode 100644
index 0000000000000000000000000000000000000000..c33ded255d91c4e5e23764aa3c6ac775fc4a90f2
--- /dev/null
+++ b/src/app/components/dialogs/collection-select/collection-select.component.html
@@ -0,0 +1,19 @@
+<form>
+  <div fxLayout="column" fxLayoutAlign="center" fxLayoutGap="10px">
+    <div fxLayout="row" fxLayoutAlign="center">
+      <p>
+      Please select a collection or create a new one!
+      </p>
+      <button mat-raised-button color="primary" type="submit">
+        <mat-icon>note_add</mat-icon>
+      </button>
+    </div>
+    <div>
+      <mat-selection-list #collection>
+        <mat-list-option checkboxPosition="before" *ngFor="let collection of collections">
+          {{collection}}
+        </mat-list-option>
+      </mat-selection-list>
+    </div>
+  </div>
+</form>
diff --git a/src/app/components/dialogs/collection-select/collection-select.component.scss b/src/app/components/dialogs/collection-select/collection-select.component.scss
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/src/app/components/dialogs/collection-select/collection-select.component.spec.ts b/src/app/components/dialogs/collection-select/collection-select.component.spec.ts
new file mode 100644
index 0000000000000000000000000000000000000000..cc4ea9286fde12ea1ae9da215dcffcb5ee4fb584
--- /dev/null
+++ b/src/app/components/dialogs/collection-select/collection-select.component.spec.ts
@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CollectionSelectComponent } from './collection-select.component';
+
+describe('CollectionSelectComponent', () => {
+  let component: CollectionSelectComponent;
+  let fixture: ComponentFixture<CollectionSelectComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ CollectionSelectComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(CollectionSelectComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});
diff --git a/src/app/components/dialogs/collection-select/collection-select.component.ts b/src/app/components/dialogs/collection-select/collection-select.component.ts
new file mode 100644
index 0000000000000000000000000000000000000000..a6c2826ff521dd1cd2322c3d9ae593be1298c28c
--- /dev/null
+++ b/src/app/components/dialogs/collection-select/collection-select.component.ts
@@ -0,0 +1,39 @@
+import { Component, Inject, OnInit } from '@angular/core';
+import { RoomService } from '../../../services/http/room.service';
+import { Room } from '../../../models/room';
+import { Router } from '@angular/router';
+import { NotificationService } from '../../../services/util/notification.service';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material';
+
+@Component({
+  selector: 'app-collection-select',
+  templateUrl: './collection-select.component.html',
+  styleUrls: ['./collection-select.component.scss']
+})
+export class CollectionSelectComponent implements OnInit {
+
+  name: string;
+  emptyInputs = false;
+  room: Room;
+  roomId: string;
+  collections: string[] = ['ARSnova', 'Angular', 'HTML', 'TypeScript' ];
+
+  constructor(private roomService: RoomService,
+              private router: Router,
+              private notification: NotificationService,
+              public dialogRef: MatDialogRef<CollectionSelectComponent>,
+              @Inject(MAT_DIALOG_DATA) public data: any) {
+  }
+
+  onNoClick(): void {
+    this.dialogRef.close();
+  }
+
+  ngOnInit() {
+  }
+
+  resetEmptyInputs(): void {
+    this.emptyInputs = false;
+  }
+
+}
diff --git a/src/app/components/fragments/content-text-creator/content-text-creator.component.html b/src/app/components/fragments/content-text-creator/content-text-creator.component.html
index 78e4f1c3799a64856407f38531a0d21d27c304d9..aff13e677e9d495a12077241b042a417c805e420 100644
--- a/src/app/components/fragments/content-text-creator/content-text-creator.component.html
+++ b/src/app/components/fragments/content-text-creator/content-text-creator.component.html
@@ -8,8 +8,8 @@
               matTextareaAutosize matAutosizeMinRows="3" matAutosizeMaxRows="8"></textarea>
   </mat-form-field>
   <markdown [data]="content.body"></markdown>
-  <div *ngIf="!editDialogMode">
-    <button mat-raised-button type="submit" color="primary">Submit</button>
+  <div fxLayout="row" fxLayoutAlign="center" fxLayoutGap="5px" *ngIf="!editDialogMode">
+    <button mat-raised-button type="submit" color="primary" (click)="openCollectionSelectDialog()">Submit</button>
   </div>
   <div *ngIf="editDialogMode">
     <button mat-raised-button (click)="editDialogClose($event,'edit')" color="primary">Update</button>
diff --git a/src/app/components/fragments/content-text-creator/content-text-creator.component.ts b/src/app/components/fragments/content-text-creator/content-text-creator.component.ts
index d8a1f1cc359b3ea88edf6d0c92150a8047227dca..96149725886a1afd5048687b6b5af91048832e33 100644
--- a/src/app/components/fragments/content-text-creator/content-text-creator.component.ts
+++ b/src/app/components/fragments/content-text-creator/content-text-creator.component.ts
@@ -6,6 +6,8 @@ import { NotificationService } from '../../../services/util/notification.service
 import { MAT_DIALOG_DATA, MatDialog, MatDialogRef } from '@angular/material';
 import { ContentListComponent } from '../content-list/content-list.component';
 import { ContentDeleteComponent } from '../../dialogs/content-delete/content-delete.component';
+import { RoomCreateComponent } from '../../dialogs/room-create/room-create.component';
+import { CollectionSelectComponent } from '../../dialogs/collection-select/collection-select.component';
 
 @Component({
   selector: 'app-content-text-creator',
@@ -47,6 +49,12 @@ export class ContentTextCreatorComponent implements OnInit {
     this.notificationService.show('Content submitted. Ready for creation of new content.');
   }
 
+  openCollectionSelectDialog(): void {
+    this.dialog.open(CollectionSelectComponent, {
+      width: '350px'
+    });
+  }
+
   submitContent(subject: string, body: string) {
     this.contentService.addContent(new ContentText(
       '1',
diff --git a/src/app/components/fragments/room-join/room-join.component.html b/src/app/components/fragments/room-join/room-join.component.html
index a90377652e1f69cd4ebe2da722f8d9ed9d8252ec..34f130104165f3f52cae0f1a6aeeee79226b8d05 100644
--- a/src/app/components/fragments/room-join/room-join.component.html
+++ b/src/app/components/fragments/room-join/room-join.component.html
@@ -8,7 +8,7 @@
         <mat-error *ngIf="roomFormControl.hasError('minlength')">A room-id has exactly 8 digits.</mat-error>
       </mat-form-field>
       <button mat-fab color="primary" type="submit">
-        <mat-icon>send</mat-icon>
+        <mat-icon>input</mat-icon>
       </button>
     </div>
 </form>
diff --git a/src/app/components/fragments/room-list/room-list.component.html b/src/app/components/fragments/room-list/room-list.component.html
index 2513764e9b0fdc1734b5ee7dd2161989ddaec001..d0729809dc820b5ed790ace94eebb0c538ce5980 100644
--- a/src/app/components/fragments/room-list/room-list.component.html
+++ b/src/app/components/fragments/room-list/room-list.component.html
@@ -5,7 +5,7 @@
   <mat-expansion-panel *ngFor="let room of rooms">
     <mat-expansion-panel-header>
       <button mat-button color="primary" routerLink="/{{ baseUrl }}/room/{{ room.shortId }}">
-        <mat-icon>send</mat-icon>
+        <mat-icon>input</mat-icon>
       </button>
       <mat-panel-title>
         {{ room.shortId }}