Interesting concept.
These are the impressions I got when I visited your site for the very first time:
1. The "Read More" button doesn't show properly (as stated already) when you have more text. Works fine when you've got less text in that area, so find out about the max words you can fit in and follow it to avoid trouble.
2. The site's idea is to provide simplicity in learning, right?
Well the badge and other sticky pop-ups at the lower right corner were the first thing that caught my attention (the ones that are powered by PunchTab?)
http://i.imgur.com/5pM5ZmB.png?1
You might wanna show these things when a visitor scrolls to at least half the page. I wouldn't advice to show them at all, but well, that's your wish
3. The up/down buttons on the slider seem a bit misleading. I thought they would hide the slider and show me the posts only!
Instead, '<', '>' buttons would look more better as they're going to control the slider.
4. "Copyright ©2011 - 2012, Jelsoft Enterprises Ltd." ahem ahem. Unless you're from the same company, I would highly suggest you to change that.
Rest seems pretty good for now, all the best