Shares of

Datalink

(DTLK)

were among technology's winners Wednesday, rising 30% after the company posted second-quarter results that topped forecasts.

The information storage company reported earnings of $446,000, or 4 cents a share, on sales of $28.7 million. Results exceeded the company's earlier guidance of a loss of 8 cents a share to a profit of 2 cents a share on sales of $23 million to $27 million. Analysts polled by Thomson First Call were expecting a profit of 1 cent a share on sales of $25.9 million. A year ago the company posted a loss of $1 million, or 10 cents a share, on sales of $21.5 million.

Looking ahead, Datalink forecast third-quarter earnings of 2 cents to 10 cents a share on sales of $27 million to $31 million. Analysts are expecting earnings of 4 cents a share on sales of $27.3 million. Shares were trading up 86 cents to $3.70.

Microtune

(TUNE)

rose 9% after the chipmaker lifted its second-quarter sales estimate above forecasts and said that third-quarter sales would be better than expected. The company now expects second-quarter sales of $13.4 million, up from previous guidance of $12.5 million. Analysts had been expecting sales of $12.5 million. Looking ahead, Microtune now expects third-quarter sequential sales to grow by 15% to 18%, which would imply sales of $15.4 million to $15.8 million. Analysts are expecting sales of $13.7 million. Microtune expects to release second-quarter results on July 28. Shares were trading up 49 cents to $6.19.

Shares of

Valence Technology

(VLNC)

rose 9% after the company reaffirmed first-quarter sales guidance and said that second-quarter sales would exceed previous guidance. The company expects $3.2 million in sales during the second quarter and expects $4.5 million to $5.5 million during the third quarter. The company said that higher-than-expected orders from Segway and a successful ramp-up of its operations in China led to the upbeat outlook.

Separately, Valence announced the appointment of James Akridge as chief executive. Akridge will replace Stephan Godevais, who, after a transition period, will ultimately act as advisor to the company. Shares were trading up 25 cents to $2.99.

AAR

(AIR) - Get Report

rose 3% after the aviation services and products company posted fourth-quarter earnings that beat expectations. The company posted operating income of $5.8 million, or 17 cents a share, on sales of $209.9 million. Analysts were expecting earnings of 16 cents a share. A single-analyst estimate called for sales of $193.4 million. A year ago the company earned $2.7 million, or 8 cents a share, on sales of $176.8 million. Shares were trading up 44 cents to $16.74.

Shares of

Talk America

(TALK)

rose 6% after the telecommunications company said that second-quarter sales would exceed its previous guidance. The company now expects sales to be above its earlier forecast of $103 million to $106 million. Talk America also said that earnings before interest, taxes, depreciation and amortization would exceed its earlier forecast of $19 million to $21 million. A single-analyst estimate called for sales of $106.8 million during the second quarter. Shares were trading up 65 cents to $10.75.

Other technology movers included

Lucent Technologies

(LU)

, up 5 cents to $3.20;

Sirius Satellite Radio

(SIRI) - Get Report

, down 6 cents to $6.92;

Microsoft

(MSFT) - Get Report

, up 7 cents to $25.68;

Intel

(INTC) - Get Report

, unchanged at $27.75;

Cisco Systems

(CSCO) - Get Report

, up 10 cents to $19.88;

Oracle

(ORCL) - Get Report

, up 7 cents to $13.87;

Symantec

(SYMC) - Get Report

, up 40 cents to $23.85;

Applied Materials

(AMAT) - Get Report

, down 5 cents to $17.05; and

Sun Microsystems

(SUNW) - Get Report

, unchanged at $3.70.