Anil Dash raised an interesting point about the human nature of tagging in a post titled, "toread is tobehuman" where he reflects on the optimism shown by people who tag items with the toread tag.

toread is tobehuman

The most profound, to me, is the tag “toread”. Though sometimes used as a public indicator with the knowledge that others can see this declaration of intent, toread is usually a simple reminder that the tagger wants to come back to that story, that article, that bit of information, and give it the attention and focus that it deserves.

As he mentions, this is generally content that deserves attention, making it interesting - yet sometimes long - content. Examples of this could be long lists of self-improvement tips or tutorials. Or manifestos on important issues by influential bloggers.

For those not familiar with the "toread" tag, click here to see a list of web pages that have been tagged with that term on del.icio.us. The resulting pages are things people like found interesting but couldn't commit to reading at the time they discovered them.

Other tag along this same line is "howto" which tends to aggregate tutorials ranging from checklists of blogging tips to instructions on how to wake up without an alarm clock. To me, this provides similar optimism as people are noting information that will help them live more successful and interesting lives.

Both tags do something other than describing the information directly, the way a tag for "blogging" or "php" may do. Instead, the tags refer to how people relate to the information. Do you know of any other examples of this?