It's a referral id. It basically tells Amazon who sent you; in this case "thealg... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

mcoffee on Oct 14, 2011 | parent | context | favorite | on: TopCoder: Algorithm Tutorials

It's a referral id. It basically tells Amazon who sent you; in this case "thealgorithmrepo", which is probably the folks in SkyMarshal's link below.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact