Ideally, I'd like to be able to see e.g. how much particular tags make up of my overall expenditures, and as an added bonus (not really important), if I could view historical spending trends on a per - tag basis that would also be nice. (money.stackexchange.com)
Well unless I'm thinking of the wrong sam, this particular tag is used by someone who is, if not an atheist, someone who defintely goes against the religious morons. (religion.blogs.cnn.com)
Twitterers use hashtags to refer to a topic that's being discussed by several people at once, for instance an issue, event or public figure, and people often use Twitter's search function to follow the extended discussion around a particular tag. (epolitics.com)