Reminds me of http://www.pinnaclecart.com/ in a way. I think the orange and green are not the best pairings. It doesn't scream technology or books to me.

I believe the dot-notation buttons for your slideshow are low-quality or just not sliced out right, and some are cut-off. You've also got a color difference in the grey bar in the middle vs. the sidebar areas that repeat-x. See below:

I would probably try to switch the focus from the 1-2-3 pricing/feature personas, and bring the video above the fold along with a couple of bulleted top-level notes about the product. Overall, it also feels like there's too many options—the nav, the content on the landing page, etc. This should be a very simple get-in or get-out site where I can arrive, see what it's about and decide if it's for me or not.

I don't think the logo is really helping with credibility. It could use some upgrades and more exploration in general.

Bookmarked and will keep an eye on this. Handy tool for a lot of people out there.