It's been a while since I've done a roundup of Google Maps "tools". Here are a bunch to help you build Google Maps integrations, as well as use Google Maps for various tasks.
MGeocoder: Google Maps API Extension for Geocoding - The Google Maps API lacks a Geocoder. This extension integrates free geocoders (for non-commercial use) directly into Google Maps. [via]
Traceroute and Google Maps - Here is a cool web tool that allows you to paste your traceroute from DOS into a window to be plotted on a Google Map. To test it out run a tracert from a command prompt, paste the results in and it will visually plot the route for you on a Google Map!
Sam Kuhn has made available a good collection of pins for use in Google Maps mashups! Use 'em if you need 'em! [via]
Here is a link to a Google Maps plugin for Nucleus blogs..
Whatsmyip.net now uses Google Maps..