Henry, over at DesignReviver.com wrote a post today titled 14 of the Most Useful Web Design Blogs. Although he forgot to include his own blog in that list, BuySellAds.com has 8 of those 14 blogs in our inventory.  If we were to look at how useful these blogs are by virtue of the number of ads sold in relation to how long they have been BSA publishers you would also find that these are definitely high quality blogs.  Ads sold = good pricing + demand + good click-through rate + publishers putting quality content out there.