I have a budget around $100 for advertisement for my seo website. Can anybody suggest me some valuable sites where I can put a banner or text link ad to get some traffic? BTW, I tried to contact directorycitic.com and infor.vilesilencer.com to put a banner ad on their website, but without response. Can anybody tell me how to contact them except their contactus.html?
I would look at press releases. Even at $10 and $20 paid options you can get some good action from press releases.
You may want to consider not going with banner ads. Banners are more expensive and pulls in less than text ads. Go with adsense. I know, I know, you heard it 1,000 times before, but it gets your ads in other sites. Show your ads to others for critique before submitting them. Advertise in as many search engines as you can. You Also Have Pay-Per-Click Services: TextLinkAds, TrafficSwarm, Casalemedia.com, FastClick, Burstmedia, FC, TribalFusion, CJ, Azoogle, CPA Empire, GlobalInteractive, AdBrite, Adengage, RealMedia, Kontera and Avnads. Many charge less than ten cents a click.   Be very careful with these kinds of services! If you're spending more on the clicks than what you are bringing in, stop! Either they are ripping you off, or your site needs fine tuning. More.... http://www.thelist.fm/marketing-advertising.shtml