you have a DSL service with a dynamic IP. Your IP typically changes once per month or so, perhaps a bit more often. It would be nice to connect a domain name to your IP address and have it automatically point in the right direction.
The easiest way to do this is probably by using the tomato router firmware for linksys routers. Presuming that you've got it installed and running:
1. Register for a free dns account at freedns.afraid.org
2. Create a subdomain e.g. jibberjabber.mooo.com. Link it to an IP address.
3. Generate a URL for dynamic update