http://magebenchmark.sonassi.com/
A site that apparently compares the "speed" of magento hosting providers. Dubious without further research.
http://blog.cfelde.com/2011/05/performance-rackspace-cloud-vs-amazon-web-services/
Interesting article comparing Rackspace and AWS performance when applying high frequency trading strategies against 10 years of archive data. Rackspace io kicks ass, CPU slightly ahead.
http://www.boilerjuice.com/
Interesting shopping comparison vertical focused entirely on heating oil. Includes smart examples of cross / up sells. Hat tip Dafydd.
http://en.wikipedia.org/wiki/Comparison_of_webmail_providers
Lists webmail providers including a list comparing features such as own domain, imap, pop3, etc. Makes a useful list when looking for an outsourced mail provider.
