Kind of interesting how a "social" website can be such a great tool for the independent, hermit nature photographers, eh?
I'm part of a small volunteer group doing research on social networking sites for conservation & fund raising. Several folks on here are involved with local organizations, and there are many parallels with that and commercial/professional business.
We've chosen to hone in on facebook, as we found it to be more of the 'megastream' with several other sites interlinking in some form (evidenced by the recent slew of software plugins that relay articles, media, etc.)
Given that, there appears to be X number of ways to skin the cat on that site alone. Personal profiles, pages, groups, causes, "fans", news feed, and many more channels. Mostly, I've noticed facebook greatly compliments existing social networks, specifically of interest to photographers - repeat customer base / word of mouth. Facebook is a great tool for solidifying existing business relationships, maintaining them, and forging some new along the way.
I've talked to / interviewed a number of folks, and find results mixed across the board. Some yield terrific success and reshape business / fundraising models around a central facebook presence, others fail miserably, yet still find themselves addicted to using the website (literally $0-$5 raised for a cause over the span of a year).
Sidenote, there are several studies (interesting reads) that look at the effectiveness of commercial advertising on facebook. In short, it's very weak- the numbers just don't happen with the "click ads", like they do on many other websites.
My feeling is that the devil is *not* in the details with marketing efforts on facbeook, but instead it's important to have a basic understanding for pro social marketing. However you choose to skin the cat and go about it is like your postprocessing choices in PS. I'm sure whatever I've looked at has just barely cracked the surface of the website
