whattheydonotwantyoutoknow.com
www.whattheydonotwantyoutoknow.com is a website only accessible in Grand Theft Auto IV, The Lost and Damned, and The Ballad of Gay Tony. The site has a layout similar to a forum where users can post information (similar to that of craplist.net, another website in the GTAIV series). The website has several maps of locations of items, missions, and vehicles (although the actual usefulness of the maps varies - for example, the Flying Rats map only gives approximate locations and will show multiple targets in one location but not explain where, while the weapons map doesn't indicate what weapons are located where). The site also has a section on cheats on the cell phone. The site does not update itself as the player progresses through the storyline and is not changed in the episodes. The URL can be fairly tedious to type in using the onscreen keyboard (remember the in-game Internet requires URLs to include "www." too), but an email with a link to the site is sent after game completion.

Flying Rats
Plague of Pigeons in the City.
- Posted by BirdNerd
Weapons
The hidden weapons that the mayor wants you to find.
- Posted by LibertyLove
Health
Health is a gift from space. Worship the worm.
- Posted by HealthyEater
Random Characters
Sick freaks to avoid.
- Posted by SaneJane
Body Armor
Make sure you've got armor. Be ready to fight the Aliens!
- Posted by Patriot68
Stevie's Car Thefts
Text Message Cars. I know you're all crazy, but are you crazy enough to take some cars?
- Posted by Stevie
Window Cleaning Platforms
Government spying with Window Cleaning Platforms.
- Posted by TheAuditor
Friends Hangout
Fun with Friends.
- Posted by EddieLow
Unique Stunt Jumps
Jump to a new level of spirituality.
- Posted by Trooth
Vehicle Cheats
Vehicles appear out of thin air and I haven't even been sniffing any glue today!
- Posted by MathsGeek
Other Cheats
Glitches in the network, dial a number and life will change.
- Posted by MathsGeek