Website Monitoring Service
Looking for Website Monitoring Service. Can you recommend a company.

Monitor the following:
Host Uptime
Dead Link Check
Search Engine Position
Can monitor unlimited domains

I think www.alertra.com and web-stat.com might do what you are looking for.

alertra.com is a very good choice. Findmyhosting.com is also using that.

We use both alertra for server monitoring and web-stat to track traffic to our site. Both are very decent and affordable.

You can also check this:
http://www.r-fx.net/sim.php
It is a Service monitoring who auto restart failed services.
Christos