In 2009, Hubspot decided to coin the term Inbound Marketing in a new way so they can claim the space ("first inbound marketing software"). Since then, they changed the entire Google results (starting with Wikipedia) so that they come up on most queries. The rare times I used Inbound Marketing with traditional marketers, they always meant Market Research.
I was never actually aware of the "market research" definition; this is the first I've heard of it.
At Moz, I've long been looking for a phrase that means "content marketing + white hat SEO + social media + email marketing + conversion rate optimization." Inbound marketing has come to take on that definition, and I like the terminology. Permission marketing always had an association to me with list building (usually email), but never SEO, social, CRO, etc.
If another term/phrase catches on that encompasses all those facets of organic/natural/inbound/white hat/mostly-non-paid web marketing, I'd likely switch to that. In the meantime, it's far easier and more comfortable to go with the prevailing convention.
BTW - Saw your other comment below and am totally flattered. Not sure how I can live up to that, but thank you :-)
In 2009, Hubspot decided to coin the term Inbound Marketing in a new way so they can claim the space ("first inbound marketing software"). Since then, they changed the entire Google results (starting with Wikipedia) so that they come up on most queries. The rare times I used Inbound Marketing with traditional marketers, they always meant Market Research.