Note that many websites have their own advertising, unrelated to adware.
An IE toolbar providing search features.
Look for the Wazam.com folder in Program Files. For the variant distributed with IconForge this may be in 'C:\Program Files\CursorArts\IconForge\Wazam.com Toolbar'. This path may vary for different drives, Windows installation languages and variants of Wazam, so if yours is different you will have to change the command below to match.
Open a DOS command prompt window (from the Start Menu, choose the 'Accessories' submenu in 'Programs' to find this), and enter the following commands:
regsvr32 /u "C:\Program Files\CursorArts\IconForge\Wazam.com Toolbar\SBar.dll"
Restart Windows and you should be able to delete the entire Wazam.com folder. You can also delete the key HKEY_LOCAL_MACHINE\Software\SBB to clean up if you wish.