Meetro (Beta) a new location-aware Instant Messenger is out! It's like a normal IM, but you can see where your friends are located and how far away they are from you. The good things is, that you can easily integrate your current IM like ICQ or AIM. I just talked to Paul, one of the founders, and he told me more IM-Plugins are about to come.
Their approach is similar to Plazes, especially when it comes to the technical side. They use the same method to locate their users. However Meetro (currently) doesn't give users the chance to tag a Place, instead they cooperate with hotspot providers, which provide them with location data. So their data is very accurate, but we know how much fun it is to actually tag a plaze by yourself (I tagged Bastians former home before he did it
. Unfortunately, Meetro does not have cooperations with hotspot provides in Europe so far.
Another difference to Plazes is, that Meetro strongly focuses on IM and on integrating existing IM-Clients. This is a good idea, since users can keep their IM buddy-lists. Furthermore it's likely that this will let them grow fast.
Instead Plazes has a more innovative concept. They succeed to interlink people and places in a new exiting way. You can discover new places and customize them. Each place can be tagged with pictures and includes a forum. People can be present at a place and leave traces. Every site has an RSS-feed and Flickr-Plugins are on the way. Felix told me that they will soon come out with a RDF-API. This is something I lock forward to.
Currently both services are beta and both seem to be promising. I’m curious what’s going to happen in the future.