And it's cheap! If you want JUST cameras it's pennies a day, I'm running a 2010 gaming PC with a dozen services (which would cost >200 bucks from the usual suspects) and it's still only 20 bucks a month.

Blue Iris is a fairly amazing camera hosting solution. I am continually impressed with the quality of the code and feature set. (disclaimer: $80/yr but we actually pay a bit less).