Matt McGee previews five Twitter search tools that "may have flown under your radar." The first has the potential to have "serious local search implications," he writes. The other tools allow
you to search Twitter user bios, search and discover information deep in Twitter's archives, and find jobs advertised through tweets.
For example, Searchtastic is a Twitter search engine
that, unlike Twitter's own search, can dig deep into the archives. McGee writes that the search tool can't index all the tweets. It's limited by the Twitter API. But McGee says that can help you
gain better results.