I have compiled specially for you a list with the most beautifull, and usefull inspiration sources:
edpeixoto.com

Here you can find really good free vectors sets and quality vector graphics all for free. Graphic designers submit their work for free so that you can download them also from QVectors.com.

Web design has evolved a lot in the last few years, and beside an good design, you definitely need JavaScript components. You can use it’s functionality to create transitional effects such as fading and sliding animation.
Many times, writing Javascript code was an real pain in the ass, but thanks to the open source Javascript frameworks, [...]