Nice, but with so much competition in this area you need to shine. I'm not sure what the "it" is that will cross you over, but look deep for a unique selling advantage!
The landing page looks very crisp letting the user find what he wants... - I like the crisp part. But how will you market this? With no content whatsoever, it would be very difficult to market the page... What say? May be have three links on the first page with an article highlighting the importance of social marketing/advertising and then internal pages each with articles about facebook, twitter and any other service you do .... I think this would make it more appealing and make the user stay in your website longer as well as getting acclimatized to your site.... Hopefully this helps.
the site looks a bit spammy. focus on making it neater and take out teh image repetitions, its redundant in my opinion. the leaner it is the more content driven it will be.
It lacks content on what these facebook/ twitter followers are for. And the buttons look poorly done. But there is a viable market for it especially for internet and SEO persons like us. Just my two cents!