Hacker News stories for 1 PM on Thursday Mar 28, 2013

0.537 A Note from one of Cloudflare’s upstream providers comments

0.337 Closing the loop between your customer data and your email data comments

0.309 Factors To Consider When Evaluating Digital Marketplaces comments

0.281 C# Extension Methods Demystified comments

0.241 Numbers in Action comments

0.124 SEC Greenlights FundersClub (YC S12) comments