If you ever want to see how websites looked in the past check out Knoxos.com. This newly launched service allows you to enter the URL of the site and rediscover how it used to look years ago. You can view history of any website starting from 1996. For instance, here is how Google looked like in 1998.

The site is new and still being worked on, other features such as web monitoring and archiving are coming soon.
Features:
- See how websites used to look.
- Lets you view archives since 1996.
- This site is a mash up of Yahoo! Search BOSS, archive.org and MediaWiki.
- Free and no registration.
- Similar sites: Wayback Machine.
Check out Knoxos @ demo.knoxos.com