1. Fringe Bloggers: This website provides excellent insight into each episode in its reviews and also posts Fringe news.
2. Fringe Television: This website provides comprehensive reviews, news and podcasts. Excellent.
3. Mark Watches Fringe: Provides really wonderful reviews from a die hard fan.
4. Cortexiphan: A wonderful website that provides reviews and news
5. Peter and Olivia Website: Great resource for Peter/Olivia Fans.
6. Fringepedia: An Encyclopedia of sorts that is insanely comprehensive. Provides episode reviews directory, episode transcripts, and character/actor bios.
If you know any other websites that I didn't mention here, feel free to let me know!