10 free PSD resource sites, can not not bookmark oh. ctrl+D bookmark here.
1. http://www.photoshopfiles.com/
2. http://www.officialpsds.com/
3. http://www.psgalaxy.com/
4. http://www.freepsd.com/
5. http://www.designbum.net/
6. http://deviantart.com/
7. http://psdfreebee.com/
8. http://www.toptut.com/
9. http://www.downloadpsd.com/
10. http://photoshopcandy.com/
In addition, imitation is the best teacher, we suggest that when learning psd, more imitation, learn from the works of previous masters.