i heard rumors about WOW , you can sell services there, otherwise send Vc's in games magazines ,you never know
Which way do you want to earn money from games? If you chose to earn money by playing games, you must be a very pro player in that games by selling the money and items in the games. Another way is to create your own game website (you just need to have the basic of creating a website). If you're interested, one of the great website for you to download free flash games for your website is mochimedia. It's free to download and you even earn money when people play those games you uploaded from mochimedia and also you can earn a decent money from game ads too.
Start a blog where you blog about games, these can get real popular real fast. With Adsense, you could slowly start bringing in some cash.
You could farm in WoW, but that's against the ToS so you'll get banned for sure, so why don't you instead enter a tournament or something?
In my opinion start making games coz i heard that game designers of EA,GAMELOFT etc gets bunch of bucks..!!
u can do one thing......... just search out all the tech fests in engineering college..... if u have agood gaming skill u will be rich within no time........
Writing blogs about games seems to be the best idea here for a quick start. But your content should be interesting and useful to others, and you need to write very often.
This will require expert programming or designing skills in gaming. You can only earn through games this way if you have the basic and get hired by games company.
As a gamer you could probably play in tourneys (if you're really good), write blogs, reviews, or maybe even become a tester. There is more money and making games or resources about games than gaming itself.