Avast says site has virus

My virus scanner warns me that the site has mallware on this url (probably a banner):

http://m.addthisedge.com/live/t00/250lo.gif?jwegg1%26uid

In what way does Avast think it is "harmful"?

Which page are you seeing the warning on?

Which avg program are you using?

I tried viewing the link you posted, just shows as a complete black page to me sorry.

I got the same message to but it stopped notifing me.

I installed the freebie version of Avast and so far haven't had any warnings on either Chrome or Firefox on Chess.com

I use Avast and am using Chrome and I havent had any problems as yet.

I'm using the free version of avast and I have got this warning as well. I'm using Firefox browser.

Don't tell my girlfriend there's mallware here. She'll want to shop and I'll have no time for chess.

I've never had any virus warnings here.

http://toolbar.netcraft.com/site_report?url=http://www.chess.com

Nothing wrong here. 0/10 risk rating (not that I know what risk it's referring to).

Don't be so ridiculous

AVG doesn't report a virus for chess.com but did say something about Lady Gaga. 

Even for me a virus was find here. While playing I got malware that made advertisment and after the virus named ...(I don't remember)32.dll