I don't know if it qualifies as a startup, but I've been seeing ideeli ads everywhere and once they figured out how angry people got at clicking on an ad for a sale and being sent to the homepage, I'm guessing their conversions spiked way up.<p>I finally bit the bullet last night and ordered from them. I worry for my financial future.
Not sure if Pinterest started this trend, but their signup process is genius.<p>You need to get an "invite" to join, which always arrives within 48 hours. It makes you want to join because it's a "privelage" to be accepted.<p>It's very subtle, but smart marketing.
¿why is this topic repeated? you already have this one published: <a href="http://news.ycombinator.com/item?id=4486870" rel="nofollow">http://news.ycombinator.com/item?id=4486870</a><p>(I'm new so maybe I'm in a mistake)
My personal favorite is the use of "Green Graffiti" at SXSW:<p><a href="http://blog.loku.com/the-making-of-green-graffiti/" rel="nofollow">http://blog.loku.com/the-making-of-green-graffiti/</a>