The Two Top DirectoriesTwo great citations to raise trust in your website are Dmoz and Yahoo Directory. Don't overlook them. They can only help boost traffic to your site and ranking.
Acceptance into Dmoz Open Directory Project is difficult at best and if you get your site accepted you are doing something right. It is a goal worth striving for and attaining.
Yahoo costs $300 a year and does not accept all submissions, so there is a risk of losing your submission fee. You need to want the citation badly enough to come up with the money despite the risk.