Here is a site that has some great advice on staying motivate and cultivating that inner drive that we all need to succeed. Cheers!

http://www.alistapart.com/articles/stayingmotivated/

Mastery - The Keys To Success And Long-Term Fulfillment - George Leonard

This book is recommended by Marshall Vandruff in his... well... tremendous lists so we will begin will most fundamental.
Have fun summer with inspirations folks.

You can buy it at: Amazon bookstore