Strange Text Appearing

My website is www.21stcenturymom.com I had installed an ad plugin. I was attempting to create and ad and then decided I didn't need the plugin. Now on each page is the ad information and I can't get ride of it. I'm not sure if that makes sense. If you look at my site, you'll see it on the right side of each page. I deactivated the plugin that I thought caused the problem and it didn't work. Then I deleted it and that didn't work either. Please help!