@tachyondecay: Twitter is a weird beast. It's no longer really just 'what are you doing'. It's 'Hey, I think this is important...what do you think? ' or ' hey, social media guru available'...etc. But it is about broadcast, it seems. And you're right...if someone you've been following suddenly starts talking about and linking to hair removal products, then the perception of the source changes. And loses credibility and value. Good point re: tweets should add value and encourage interest in the sources *other* online assets...blogs, website, etc. That's how microblogging should be done.

@trisshussey: That's my thinking...I do review tweets of folks who follow me to see if their tweets are appealing to me or not. Ads generally don't appeal to me, nor do tweets about 'helping others find success in online business' etc. And don't get me started on Twitter Spam -- where someone RT your tweet, but changes the short-link to another website about a product or such.