Viacom and Yahoo have entered into a multi-year agreement for search marketing and web search distribution. Under the agreement, Yahoo will provide multiple search marketing and web search services to Viacom's online properties, including BET.com, CBSNews.com, CMT.com, MTV.com, NickJr.com, SHO.com, and VH1.com, according to Viacom (via MediaBuyerPlanner).

Paid search ads, contextual ads, and algorithmic search boxes will appear on Viacom's online properties - the first time that they have carried paid search ads or contextual ads, according to a Yahoo Search Marketing spokesperson - writes ClickZ. Together, the Viacom sites reach 37 million unique monthly visitors, according to comScore figures from July.

Financial terms of the multiyear deal were not disclosed. Viacom makes some of its video content available for Yahoo's video search product.