Mark Fishman
@markfishman
馃 User research for consumer tech startups
馃 Innovation in social systems
@markfishman
290 cards 路 by sari and
44 cards 路 by sari and
41 cards 路 by Jihad Esmail and
173 cards 路 by Alex Wittenberg and
293 cards 路 by sari and
5 cards 路 by Ian Vanagas and
1 card 路 by Mark Fishman
35 cards 路 by sari and