Ask HN: Best startup marketing you've come across this year

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.

I finally bit the bullet last night and ordered from them. I worry for my financial future.

"I worry for my financial future" - love it. Marketing worked!

Not sure if Pinterest started this trend, but their signup process is genius.

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.

It's very subtle, but smart marketing.

New Relic for the free t-shirts!

¿why is this topic repeated? you already have this one published: http://news.ycombinator.com/item?id=4486870

(I'm new so maybe I'm in a mistake)

Hi Robby - the other one didn't get any responses, and I think it was in big part due to the time I posted it. I wanted to see if a new crowd had add'l insights.

It looks like it worked :)

My personal favorite is the use of "Green Graffiti" at SXSW:

http://blog.loku.com/the-making-of-green-graffiti/