I wont be using anything with a black background. I like the logo but will need something a bit more emotive for cover images. For logo would need to Join SEOHUB together. Change tagline to "Connecting You With Your Customers"
Last thing I need to see i the set of three icons for the 3 levels of website services. I do liek your stuff but I also like http://www.freelancer.com/contest/Design-a-Logo-for-New-SEO-Website-31413-byentry-1587720.html The colour fits the website and the design element is integrated. The three graphics he supplied is a start but need more to stand out on the page.