Pinterest beats quarterly revenue, user add estimates

(Reuters) - Pinterest Inc beat analysts' estimates for fourth-quarter revenue on Thursday, boosted by the online scrapbook company's efforts to attract more monthly active users.The company has added augmented reality features to enhance visual search in its platform and entered markets such as Denmark, Norway, Switzerland in its attempt to drive user growth.Monthly active users jumped 26% to 335 million globally, above analysts' expectation of 331.3 million, according to research firm FactSet..