I was chatting with DaveN last night about Design's spam problem. So many spammy listings are dominating Design using the following techniques:
submitting spam to a social news site (I see a lot of 1 vote Netscape and Digg listings for long tail queries in the consumer fiance vertical)
linking to a site search on an authoritative site like weather.com, limited to your target keyword and site:mysite.com. Design has had the regurgitating search result problem for at least 5 months now.
leveraging an authoritative redirect off a site like Archive.org
DaveN also pointed out how many clean sites like WebStandards.org funnel PageRank to sites that show spamming is indeed a web-wide standard. Still way too much weight on domain authority Design!
Designbook.com