How to get cheap and targeted paid traffic?

here's what i did for one of my startup. this is what i did, hope it help someone.

- do a monthly update video on the startup. it keep my users informed on what i have been up to.

- demo at startup events/conference. this really help you to connect with your users in persons.

- having a blog/twitter/facebook fan are a must, it help to u connect with people n start a conversation. u never know, it could get to Michael A... n u hit jackpot. :P

Before starting development, and especially during development, keep an eye on a very broad set of Google Alerts that blanket your market. Read each alert carefully and identify websites that talk about your market or your competitors.

This will give you a list of places you can start a conversation with. So while you're preparing for launch, keep notes of each candidate website. Notes to keep: name of the author of the article, URL of the article, when it was written, etc.

Now when you can share something, email them saying you read their article about X and thought they might be interested in this new thing you just built. Tell them very briefly (2-3 sentences) what your new thing does/is and how it's different, and give them your contact details (including phone or Skype - some like to chat).

This strategy becomes more important after launch as you don't have to wait before getting in touch. You can email them immediately as they can see your live product.

I manage the SEM campaigns for Vistage (business coaching) at a digital agency. Looks like Bizo might be a good fit for them. Anyone in particular I should talk with to get some more info?

Thanks for pointing at LinkedIn DirectAds, I will give it a try and update my blog post.

I will also check out Bizo. Does it allow for small budgets as well? (like 5$ or 10$ a day)

EDIT: Answer to my own question: Self Serve allows $5 up to $300 per day.