How can a site member show RSS feeds in the side-bar in his Profile?

How can a site member show RSS feeds in the side-bar, for example, some 5 titles or Titles plus Excerpts - in the side-bar of his Profile page ?
This stuff is really useful and exists in almost all php scripts.

Can the RSS feeds be shown in the stream/timeline like "text updates" so that other users can comment or like them, for example in Drupal they let each feed item ( Title or Title+Excerpt) be 'imported' in the stream as stream entries, which can then be commented upon. Cool!

Thanks. If such feature is already there, can you please put up a Demo link? Thanks so much.