Yahoo Publisher Network for small publishers is closing on April 30.Yahoo has also notified about this to all the Small Publishers via E-Mail.Yahoo announced in its Blog that “We have decided to close the program effective April 30, 2010. This only affects our self-service platform for small publishers who syndicate our Content Match (contextual) listings.”

In the E-Mails Yahoo is suggesting it’s Publisher to switch to chitika.Yahoo wrote “For the opportunity to continue earning revenue, we suggest using chitika, a leading advertising network that syndicates yahoo! Content match and sponsored search ads. Chitika has set up a special process for ypno beta publishers to participate in its platform.”

Yahoo first introduced it’s Publisher Network in 2005, and it was believed that Yahoo will expand it’s publisher network when it comes out of Beta.But instead of coming out from Beta Yahoo decides to close its Publisher Network doors for Small Publishers.