How do you use the 'hashtag' on twitter?

Answer:
The hashtag is generally used with trending topics. This is so people can search for a specific term using the hashtag. For example, using #wikianswers in tweets would allow people to more easily find tweets that mention WikiAnswers.
First answer by Xnicola. Last edit by Xnicola. Contributor trust: 576 [recommend contributor recommended]. Question popularity: 2 [recommend question].