I have gotten burned a lot lately by vendors whose sites go down too much. It's pretty much impossible to tell a priori how good a site's uptime is, and I wish people posted their uptime charts. I thought about instituting a policy of only using vendors that do this, but frankly I can't find any that do.
I run a few SaaS sites, and am wondering if I should eat my own transparency dog food and post our own uptime stats...
Thoughts?
Check this site out, it has a lot to say on this subject (and good examples in their 'hall of fame'):
http://www.transparentuptime.com