Anyone here on HN using Facebook successfully to promote their startup and/or personal website? I'm actually curious, and know of people in general who use it effectively but I'm more curious about the results from fellow Hackers.
I've run workshops for clients on using new media for new leads. The consensus has been that Facebook is a neat way to give news to people who already know you (though the signal to noise ratio continues to lower), but a poor way to find new people.
That said, I would encourage most businesses to have a presence on there as part of their online content management. If it's quick to copy news from your site over to Facebook (etc), then the costs are low and it will support your brand.