Recently I began my summer courses at The University of Illinois (currently mid way through the second week), they are challenging (MCB 150 and CS 357), but they are enjoyable and I find I am learning a lot. Beyond those courses I also signed up for a startup class on Coursera: https://www.coursera.org/course/startup. I hope it will be interesting and aid in developing my javascript skills. Supposedly, the final project for the Coursera course is developing a crowd funded website, so I guess I will be developing my fourth website.
I already had(have) and idea for the website that I have been working on and I think it may be useful for predicting stock prices. In any case, this summer is proving to be intensely high pressured, but fun. Hope it continues!