Apple is About to Reduce Google's Revenues 14 years ago
I don't trust the results of that website.
Compare: http://blekko.com/ws/c%23+get+custom+attribute+/monte
With: http://www.google.com/#hl=en&q=c%23+get+custom+attribute
Blekko claims the first google result is "C: Summary for Citigroup, Inc. Common Stock- Yahoo! Finance", while google finds the relevant information.