Affiliate site uptimes?
 

Just curious what services / methods people that own an affiliate program were using to check their sites uptimes on an hourly/daily basis, are there any products you can recommend or do you check them all manually everyday?

I'm a fan of pingdom.

Adding to that... what I do specifically is write one "health" page that does a concurrent cURL of each of my sites. If any of them do not return HTTP code 200 then I get an alert on my phone. I do all that through pingdom.

Used a few over the years that give false alarms or don't catch everything, never had a problem with http://www.hyperspin.com

pingdom checks my sites every 5 minutes and notifies me via email & phone call.