Someone should write a speed test website that looks to read from a set of common cloud services and then compares the speeds and records this based on ISP and location.
This shouldn't be hard to setup and you'll get a ton of page views probably for ever.
One can then see degradations over time and based on ISP. Would be even nicer to have some controls in there too so you can see if well known cloud services are slower than non-cloud services.