There’s not a lot of information available on the website, but the learn more section has some details about the company and what they provide for actors.
“There is no charge to register and establish your account on Actors Access. By doing so, you put your Profile into the Breakdown Services database which is searched by Casting Directors when they are searching the database looking for specific talent. You can optionally receive email notification of the latest roles posted that meet certain criteria in your Profile.”
– ActorsAccess.com’s member benefits page
Basically, members of ActorsAccess.com are sent acting advertisements where the role criteria matches that on their profile. They have an official Facebook and Twitter for those interested, but please don’t bombard them with questions about the ad, I think we know enough about it now. I hope that this is enough information to answer everyone’s questions about it’s legitimacy.