Shares of Baidu.com ( BIDU) sank in late trading Wednesday after the Chinese search engine's better-than-expected second-quarter results failed to impress investors. The Beijing-based company earned $7.3 million, or 21 cents a share, on revenue of $24 million. Excluding costs such as stock-based compensation, the profit was 26 cents. Those results beat analysts' forecasts for earnings of 8 cents a share and a top line of $23.3 million, according to Thomson First Call. For the third quarter, Baidu projected revenue of $30 million to $31 million, above analysts' target of $28.9 million. The projection implies sequential revenue growth of 29%, a slowdown from the 41% sequential rise in the latest quarter. Baidu shares tumbled $13.02, or 14%, to $78.95 in after-hours trading. Shares of Akamai Technologies ( AKAM) jumped after the Web-services company posted second-quarter results that exceeded estimates. The company posted earnings of $11.3 million, or 7 cents a share, down from $15.9 million, or 11 cents a share, a year earlier. Excluding certain items, earnings were $35.8 million, or 20 cents a share, beating analysts' mean estimate by 2 cents. Revenue jumped 56% tom $100.6 million, easily topping Wall Street's forecast of $94.7 million. "We had an exceptionally strong quarter, exceeding our growth expectations," said Paul Sagan, president and CEO, in the earnings press release. "We experienced robust demand for our services across many verticals, with heavier than expected customer usage resulting in part from the explosion in digital media consumption and the continued proliferation of broadband around the world." Akamai shares surged $4.67, or 16%, to $34.67. MEMC Electronic Materials ( WFR) shares moved higher after the wafer maker posted better-than-expected second-quarter results and raised its full-year forecast. MEMC's second-quarter profit more than doubled to $81.9 million, or 36 cents a share, from $40.5 million, or 18 cents a share, a year earlier. Excluding certain items, earnings were 45 cents a share. Analysts, on average, predicted adjusted earnings of 42 cents a share. MEMC's sales jumped to $370.5 million from $272.3 million, topping Wall Street's target of $361 million.