Twitter pins ad revenue hopes on new partnership, acquisition

By Yasmeen Abutaleb NEW YORK (Reuters) - Twitter Inc's efforts to reassure disaffected ad buyers may hinge on the success of two deals that were announced along with its bleak forecast on Tuesday, advertisers and analysts said. Twitter was forced to cut prices for its new "direct response" ads, Chief Executive Officer Dick Costolo said on Tuesday after a the company issued a revenue warning for the year. Twitter shares fell 8.9 percent on Wednesday after dropping as much as 24 per