WordTail has a nice set of features you usually expect from a rank tracking tool. It monitors your keywords positions in SERPS (natural search engine results pages) and shows where you rank in Google, Bing and Yahoo’s. Track as many websites as you want, and benchmark your keyword positions against your competitors, easily segment your keywords into specific campaigns and chose a schedule to suit your project needs.

Above all, WordTail’s a collaborative tool: share your projects with your colleagues or clients!