[technotony]

"Advertize what you want to buy, not what you sell" I forget the name but there was a site trying that about eight years ago. Argentinian startup I think. Might be worth trying again, you could build early adoption from twitter maybe? Usual problem building a two sided market...

[danblick]

See "The intention economy" by Doc Searls.

https://en.wikipedia.org/wiki/Intention_economy

[soared]

"Use keywords do define what you are looking for" "Google.com"