This would have to be a "value added" benefit...the link value has the advantage of the 96 Domain Authority, and the sample page I looked at had a 51 page authority.
The BBB rep I just spoke to about an address change and my own listing told me that you can be in many categories as long as they are relevant. This opens up additional link leverage from category/keyword listings with one membership. Examples are web design, search engine optimization (I did not see SEO), internet marketing, advertising-internet, marketing consultants, etc. so there may be more than one that fits for added link value.
There seems to also be space for a brief description, which could contain keywords
The Facebook and Twitter links are no-follow, and the web site link is a follow link, with no redirect, or anchor text.
The added value of having the BBB accreditation, and hopefully an A+ rating is the fact that not many web marketers have it and the search options on the BBB home page have a BBB accredited filter for category searches. Since our market is becoming more saturated by the minute, a BBB accredited logo on your home page may be a distinctive brand that encourages more confidence with site visitors. They also have a monthly pmt plan of $65. I'm considering membership for the above reasons. If I get one client as a result in a year it would pay for itself or more. Current clients may be impressed with the membership and more likely to give referrals. As far as authority and reputation, it would seem like it would help, maybe not in Google rankings directly, but in the social response to being A+ accredited. The listing that I viewed had a Share This widget, Google+1 button and Facebook like button on the profile page.
Just some thoughts.
