Lazy Linking, 225th in an Occasional Series

Stuff I liked lately on the Internets:

225.1 The next killer e-reader app is...Instagram? @fastcompany bit.ly/2o7Qkcv

225.2 Is the future of US sports arenas more engagement/integration with their immediate neighborhoods? @sbnation bit.ly/2IopWCl
 
225.3 This intrepid reporter's 2 hr underground jaunt from Gallery to Comcast Center is the most on-brand Philly thing you'll read all week @billypenn bit.ly/31OKgEJ

225.4 Parking requirements turn a site that can support lots of affordable housing into one w/fewer units all very unaffordable @sightline bit.ly/2MdJ7jr

225.5 Nothing to see here, just China prepping tracks for trains w/max speed of 1000km/hr (that would be like NYC-LA in 4 1/2 hrs) @asiatimesonline bit.ly/2OngfIc