KlickPatrol - Monitor, detect, reduce click fraudKlickPatrol is an advanced click fraud monitoring service that allows you to track PPC ad clicks from all of your campaigns across multiple domains. Detailed reporting allows you to search on keywords, search engines, and high risk click behavior. KlickPatrol also supports visitor alerting when click fraud is suspected, a surprisingly effective means of deterring pay per click fraud. The script is easy to set up and involves including a small snippet of javascript on each of your ad landing pages.