In May, PW reported on Gumroad's API that aimed to simplify online transactions. Indeed, the earlier release did move Gumroad towards its goal: "to democratize the ability to sell stuff online." However, Gumroad's latest offer, Platform API, simplifies the online buying process even further. The earlier API required buyers to register for a Gumroad account and required the use of links. The Platform API removes the need for links and buyer accounts. Instead, an entire transaction occurs on the merchant's site.
Rap enthusiasm site, Rap Genius has gone through the impressive tasks of combing rap and Google Maps. Rap Genius' Rap Map is a Google Map-based visual almanac of all things rap. You can scan an area and view rap landmarks and places mentioned or referenced in some famous rap lyrics.