Karaoke Base is a Google Maps Mashup of karaoke venues in the US and UK.
You can search the map for karaoke venues by location, by day of the week or you can filter by type of karaoke (public, private rooms, live band), or venue keyword. The map sidebar and the map markers provide additional information, such as the address and website links.
What's Going On
This is an interesting mashup of Google Maps and Google News. Click anywhere on the map and an information window opens displaying the local news at that location.
Photo Map shows Picasa photos and a live Twitter photo stream on a Google Map. Picassa and Panoramio photos are displayed on the map as a layer. Photographs that have been posted to Twitter are shown as a live real-time feed. The map animates from one Twitter photo to the next.