Just in: Boston based C2B texting innovators Pingup announced having closed a $4 million dollar Series A funding round led by Boston VC firm, Avalon Ventures. Pingup is pretty much the way an engagement “easy button” is supposed to look. If ever there was an innovation bred out of need, Pingup CEO Mark Slater and fellows The post Pingup Closes $4 Million Funding Round – Opens New Sales Door appeared first on Search Engine Journal .