Feed - Your Feed keeps you up to date with the people you follow: their new tracks, playlists, and reposts will display on your Feed. Your own posts will also appear on your Feed as well as your profile. 
 
Profile - Your public profile (soundcloud.com/[insert your url]) and your public profile shows the tracks you upload and repost. 

Home - Clicking on ‘Home’ will redirect you to your Feed, alternatively you can switch your Home view from Feed to Explore to get a Feed full of trending hits.

Library - Your Library page shows your Likes and Playlists as well as the Tracks and Playlists of people you follow.

Repost - Reposts are a quick way to share your favorite discoveries on SoundCloud with your friends and followers. Click the repost button below a track or playlist to add it to the top of your profile, and share it to the Feeds of your followers.
 
Spotlight - Spotlight allows you to pin up to 5 items (either tracks or playlists) to the top of your profile page under the "All" tab. 

Embedded player - Our embedded players let you share individual tracks, playlists or your own profile on your website or blog.

Follower/Following - Fill up your Feed with audio you love by following profiles you are interested in. As a creator, all your uploads and reposts will show on the Feed of your Followers.

Likes - When you spot a track you like hit the heart symbol directly below the track waveform to save it to your Likes, you will see the symbol turn from grey to orange.
 
Playlists - Playlists are sets or "albums" created with your own or other user's tracks on SoundCloud.