Twitter just announced they are updating their real-time search to index links.
If done properly, Twitter search could morph into a strong competitor
to Google and may become critical in driving traffic to web sites. In
this post, I’ll explain why Twitter reputation may become as important
as PageRank and give specific advice you can use to improve yours.
If the predictions are right, Twitter users with excellent reputations will be able to have their sites instantly indexed and have their Tweets appear at the top of Twitter search results. This will give established Twitter users the ability to drive large amounts of traffic to their sites, especially if Twitter search becomes a major destination (or is bought by a top search engine).
Read more at Domain Twitter.