I already developed a multitude of projects during my study and was acitve or consultant involved in group works, several times as project leader.
After this I began to immerse my knowledge practically, e.g. by development of numerous experimental projects.
During my two practical trainings I was involved in these following cms projects:
Helpful books, magazins and DVD's:
A great help were all the IT reference books from FRANZIS, DATA BECKER, O'REILLY® et alli.
I can also advice the reading of the t3n magazin, a "must read" for web developers.
Also recommendable: The DVD trainings from video2brain and Galileo Computing. I possess every TYPO3 and PHP DVD's and really benefit from them.