Google has expressed interest in extending an advertising partnership with fellow search engine Yahoo. The comments from Google co-founder Sergey Brin and chief executive Eric Schmidt were made before the firm's annual general meeting on Thursday. Google and Yahoo recently shared advertising for two weeks, but some analysts said the trial was more about stopping a Microsoft bid for Yahoo. Microsoft ended its interest in buying Yahoo last weekend. “We have been talking to Yahoo and we are very excited to be working with them,” said Brin before the AGM. “We share a lot of values with them.” Schmidt said the two week trial with Yahoo had been “successful”. “That's a good basis to talk to Yahoo some more,” he said.