Google Maps
New beta service from Google called Google Maps. You can not only zoom and pan (as with other map sites), but also drag the map with your mouse or double-click to center any area on your map. I also like the way, when you search for and click on a business, you get a pop-up with the contact info, URL link and an quick link to get driving directions. Very cool and useful with seemingly small enhancements that use the power of Google to make this a better map site. Check it out.