I will add everyone his input also in this sticky post. I sticky and locked it to keep it clean and on top.
Feel free to spread out the word of Project Ion by making a blog, video, forum or information website like a wiki.
Official websites
- Download, news and much more information
- IRC (Direct contact with developers)
- Bugnotes, a bug-tracker you can join on request
- Joey Jansen portfolio
- The old forum (English)
- Polskie forum
- Unity forum (already 28000 views+)
- Entropia Planets forum (Interview with Project Ion developers, already 11000 views+)