Abstract: Techniques are described herein for providing content to a user from multiple sources based on interest tag(s) that are included in an interest cloud. An interest cloud is a tag cloud that includes interest tags, which correspond to respective interests of a user. An interest of a user is subject matter that is deemed to have a greater importance than other subject matter to the user based on information that pertains to the user. For example, an interest of a user may be derived from information in the user's emails, social update streams, web browsing history, a content element that is selected by the user, content that is received from a source that is selected by the user, etc. In another example, a user may designate subject matter as being an interest of the user.