Tags are descriptive words. Use tags to organize content to make it easy to retrieve and for others to discover by assigning 'tags' that have meaning to you. Tags and tag clouds are particularly valuable for research, discovery, collaboration and knowledge synthesis.
Any content posted at Searchles can be tagged now or later. It's up to you. You can also tag yourself and other people or friends at Searchles. You can also tag groups. Tagging is a contact sport.
It's a tag cloud. See tagclouds for explanation.
See those boxes with lots or words floating around in them?

That's a tag cloud. "Tag clouds" on the home page, user profile page, group page and search results page provide a visually intuitive way to immediately focus in on hot topics, areas of interest, and trends related to everyone, anyone, a particular group or subject. Tags and tag clouds are particularly valuable for research, discovery, collaboration and knowledge synthesis.
It's okay, take a deep breath. You might want to look at how other users are tagging content to get a better idea of how to choose good tags. And if you still can't think of any or don't have time to tag, don't worry. Searchles automatically indexes the full text on every content page submitted making the content completely searchable and instantly available to the community.