david's following
- Prusa3Dprusa3d
- Kelsey Hightowerkelseyhightower
- Jess Frazellejessfraz
- Katherine Scottkscottz
- yandiracdeltas
- Adam Langleyagl
- Rob Pikerobpike
- Brad Fitzpatrickbradfitz
- Limor "Ladyada" Friedladyada
- Johann C. Rocholljcrocholl
- Haiyan Zhanghaiyan
- X (fka Twitter)twitter
- Jeremy Hisejhise
- Emre Saglamemresaglam
- Nathan Seidlenseidle