TechCrunch.com - This Mecca of Web 2.0 generation generates over 2 million page views per month and advertisers can rent prominent 125x125 banner space on Techcrunch for a fee of $10,000 per month which translates to a $5 CPM. A skyscraper on Techcrunch available via Federated Media is priced at $20 CPM which is roughly $40k for a month.
Lifehacker.com - The average CPM for image banners is $8 while a 7-day text link on Lifehacker is available for $100. Lifehacker receives around 200,000 views per day so a month long banner campaign on Lifehacker could cost you $48k @ $8CPM.
BoingBoing.net - This directory of wonderful things handles close to half a million hits per day. A 125x125 text ad on BoingBoing costs $350 for a week while rectangular banner ads are available at $20 CPM. If you advertise via Adbrite, a text link for a week on BoingBoing will cost you $500.
On a related note, the Sponsors Kit for Digital Inspiration is now ready. If you are willing to advertise on this blog, please email us at a.p.agarwal [at] gmail.com and we'll be happy to pass on a copy of the kit to you.