American Express Is Twitter Crazy Too. Unveils Its Small Business Tweet Stream.

TECHCRUNCH — Businesses using Twitter; there’s something to this idea. Even Twitter itself realizes it, as it’s expected to be a part of its own business model launching soon. In the meantime, other companies continue to jump into the ring. The lastest is American Express, which today unveiled Pulse, a Twitter stream focused on small businesses. Pulse, which is a part of American Express’ Open Forum site, uses Twitter’s API to display the public tweets from small business owners...