Contests and giveaways move to new, fast terrain of Twitter - WSJ.com

On July 1, Moonfruit was a below-the-radar Web-site building company with 400 followers on Twitter. Just a few days later, the London-based company had acquired 47,000 followers on the micro-blogging site, traffic to its home page had increased by 1,300% and the word "moonfruit" was popping up all over the Internet.

The 52-employee firm says its new-found recognition was the result of a Twitter contest that went viral, and it's a marketing tactic increasingly being used by small businesses...