A free trial on netfix you can watch online
Try the Fox website. They have many of Glee's episodes in full for free.
There are many websites you can watch Glee for free. My personal fav is Megavideo. You just have to type in the name of the show and it bring it up for you. You can also use it for different shows. :)
on netflix
Hulu is pretty good
sky 1
Go to the link below.
the rest of the first season. then after that obviously season 2
You can watch it on Netflix or try looking for it on hulu.com
you can watch them on channel 4 player .4OD (on demand) . or E4 (and you can watch them on Hulu.com as well)
ch131.com
Season 1 of Glee already came out, and ended. The second season of Glee will come out in April.
It was shown in Glee Season 1