What profit does flash games website depend on?

The current domestic Flash games website, a lot, and many have been big, such as 4399.com 3839.com yx007.com xiaoyouxi.com 7733.com gameyes.com. According to Statistics, The current traffic over 1000 IP of the small game site has reached 4,000, there are small game channels such as play.zol.com.cn channel 4,000.
So many small game sites, rely on what survival, by the statement of profit?
The main audience of small games is primary and secondary school students, they do not have the ability to consume, the other small game itself does not have nuggets ability, so can not from outside the page to make money.
Because the small game occupies the big bandwidth, the user concentrates, therefore quickly solves the website the profit as the first main point, otherwise the website maintenance is very difficult.
At present, the main ads are Google AdSense and Jingle game ads.
In addition, Baidu's bidding and partitioning, Yahoo's click ads.
At present, the total profit is still very few, in general, Google advertising, 10,000 IP homepage of the small game site one month income of about 2000.
And 10,000 IP Small game website, the expense is the artificial 1000+ server 1000. Basically flat.
In a webmaster statistics to investigate the proportion of small game webmaster is this
Jingle League ads (16.56%)
Song Alliance Advertising (13.28%)
Film and television league ads 4 (12.19%)
GG Adsenser (16.56%)
Baidu Theme Promotion (11.09%)
Yahoo theme Promotion (1.09%)
Taobao click-like ads (0.55%)
Window Ads (10.55%)
Entertainment Click-like ads such as Tiger Green Entertainment mop (11.64%)
Jinshan Alliance Advertising (0%)
Online gaming company's monthly advertising (1.09%)
Plug-in software Installation Ads (0%)
Results paid ads such as sales commission 0 (0%)
Video display class ads such as the first video do not click As long as the play finished (1.09%)
Open shop, sell products such as selling QQ coins (11.09%)
I'm going to pull the ad 6 (13.28%)
There is no advertising form I want to say (please reply to note) 0 (0%)
In addition, most of them have no advertising options.

In fact, the most popular entertainment site on the Internet or the site of the game class,
Because the small game audience wide, free. In addition there is no copyright dispute.
If someone take the lead, will fight games, and other game ads as well as point card type ads to connect to the small game site. The website of the small game class quickly heats up quickly.