Msg#: 4327018 posted 7:14 pm on Jun 16, 2011 (gmt 0)
Of the ones you mentioned, I think BBB is the most credible and would add the most value. I would say it's the least scammy since it's been around for 100 years and has historically operated in the offline world.
Legitimacy is difficult to build to build. The more credible people and entities that you can get to vouch for you and link to you, the better.