Wikipedia:Articles for deletion/PubSub Concepts
Did you check the google search?  It's been covered by the Wall Street Journal http://online.wsj.com/public/article/SB111177841620789906-8adDuHAYDwK9nKadjNC5WZO6Hx8_20050428.html?mod=tff_main_tff_top, among other places, making it notable under .  Also, my understanding of  is that due to the volatility and sampling errors inherent to alexa's ranking system, the alexa rank cutoffs are mere guidelines and not hard-and-fast rules
— User:Thesquire, 09:54, 27 January 2006 (UTC)
Stance: comment
Cited policy: WP:WEB||WP:GT (Wikipedia:Notability)