Hi Celina. I think you can find interesting concepts about web 2.0 at Dr. Alec Coros page http://educationaltechnology.ca/couros/
I saw sth there some weeks but I'm not finding it right now but you can also connect with him through twitter and check if he can help you. He's a great professor and person:
Check his website above. I'm sure you will find sth related or exactly what you are looking for.