Which social networking sites do you use to promote your business?

Investment and wealth managers, which social networking sites do you use to promote your business or your career? Please answer the poll that will run in the right-hand column of my blog until a date in May 2009.

If you’re not familiar with the sites I’ve named, here are links to their home pages:

Are there other social networking sites that you’d recommend to investment and wealth managers? If so, please name them in a comment to this blog post. 

I’ve been using LinkedIn for awhile, but am a recent convert to Twitter. Initially, I hated Twitter. But I’ve been impressed by how many new connections Twitter has made for me. I mostly ignore the other social networking sites.

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