The IP City Cluster Plugin (IPCCP) generates a geographical cluster map based on where from people access you website.
The IP City Cluster Plugin (IPCCP) generates a geographical cluster map based on where from people access you website (or to be precise: based on the IP they got from their provider). It requires a statistics plug-in (that keeps a database or logfile) which keeps track of the IP. Key features include a preview with a lightbox way of zooming, image maps for city names and hit counters for both the preview and zoomed image, template output, smart clustering and user control over color, sizes and such.
Some of you might be familiar with the ClustrMap Service. I signed up this month and was instantly hooked. After a week or two I had two issues though. One: why didn't I sign up ealier (or how am I going to convince them to read my logfile)? Secondly you had to pay for the advanced service. Not my cup of tea (not to mention that you are always dependent on their service being up ;) - I decided to look into writing my own cluster map WordPress plug-in. Key problem was of course the lookup of IPs. Fortunately MaxMind offers a free database and the required API to get City name, country name as well as longitude and latitude corresponding to an IP address.
See screenshots for an example.