You can add Cloudscapes, Clouds and links that you have found useful or interesting as favourites. This facility serves a number of functions:
You need to have a reputation of at least 5 on the site in order to be able to add favourites.
You can gain reputation by people marking your Clouds or Cloudscapes as favourites or by recommending links that you have added to Clouds.
When you decide to follow a Cloud or Cloudscape you will receive cloudstream updates every time something new is added. This ensures that you don't miss any new additions or activity.
When you favourite a Cloud or Cloudscape you are indicating that you have found something interesting that you would like to flag up. It is possible to both follow and favourite a Cloud or Cloudscape.