If you are looking to watch Glee Online then I can refer you to such a site where you can watch all the episodes of glee in full length. I am huge fan of glee episodes and love to watch glee tv series.
Where Can I Watch Glee Online With No Surveys And No Place Limits?
Www.hulu.com its the best!
I mostly suggest Youtube to watch Glee online. But you can use Jennifer's suggested site also. There is a complete collection of Glee episodes.