To integrate Twitter into your conference, start by assigning it a hashtag -- a word that begins with a # that will bring all the conference-related tweets together. If everyone's tweets contain the hashtag, then a Twitter search for it will compile all of them. You don't need to register a hashtag -- just inform your attendees a few weeks or months in advance to add it to their tweets. (Note: Before notifying attendees of the hashtag, run a search on Twitter to make sure no one else is using it!) Thanks to Danielle Leitch, executive vice president of client strategy for MoreVisibility, an interactive marketing company, for the idea.