I found ESL Heaven through one of my Linkedin contacts, Daniel James. The co-founder of ESL Heaven also works at a university here in Korea.
The site has information for both students and teachers. Students can find great resources such as idioms, phrasal verbs, English lessons, and essay writing help. Teachers can find jobs, country guides, games, lesson ideas, and classroom management help. They can also post their CVs.
ESL Heaven also has a handful of forums in English, Spanish, Korean, and Chinese. With over 125,000 register users since they've started about 2 years ago, ESL Heaven is going to take the ESL and EFL community by storm.
I know they'll be expanding their site soon. Here's hoping they'll have reviews about schools and TEFL certificates.
Got an idea for a cool link?
Email me with your cool link, name, and website (if you have one) and I'll post it ASAP.