Yahoo and Microsoft have delayed finalization of their agreement that would have Microsoft provide the search results and advertising for Yahoo Search. When the deal was announced in July, the two companies agreed to reach definitive agreement by October 27, 2009. Microsoft said there are some “issues that need some additional clarity and definitive details” before the agreement can be finalized and that the two companies have agreed extend the deadline to finalize deal. The pact will still need to receive regulatory approval before it can begin.