Shares of

WebEx Communications

( WEBX) were among technology's winners Thursday, soaring 22% after Internet conferencing company agreed to be acquired by

Cisco Systems

(CSCO) - Get Report

for about $3.2 billion in cash.

Cisco will pay $57 a share, a premium of 23% over WebEx's closing price of $46.20 on Wednesday. Cisco said the acquisition will be neutral to its 2008 earnings. The deal is expected to close during Cisco's fiscal fourth quarter. Shares of WebEx recently were up $10.19 to $56.39, while shares of Cisco were down 5 cents to $25.80.

MapInfo

( MAPS) vaulted 51% after the location intelligence software company agreed to be acquired by

Pitney Bowes

(PBI) - Get Report

for $408 million in cash, or $20.25 a share. The price represents a 53% premium over MapInfo's closing price of $13.21 on Wednesday. The deal is expected to close during the second quarter. Shares of MapInfo were trading up $6.74 to $19.95.

BigBand Networks

( BBND), a provider of technology to telephone companies, saw its shares jump 28% on their first day of trading. The company's initial public offering priced at $13 a share, above its proposed range of $10 to $12 a share. The offering of 10.7 million shares raised about $139 million. Morgan Stanley and Merrill Lynch led the underwriting syndicate. Shares were trading up $3.68 to $16.68.

Chipmos Technologies

(IMOS) - Get Report

fell 5% after the semiconductor-testing-and-assembly services company posted in-line fourth-quarter earnings. The company reported a loss of $9.2 million, or 13 cents a share, on revenue of $181.6 million. Excluding items, Chipmos earned 18 cents a share. Analysts polled by Thomson First Call expected a profit of 18 cents a share on revenue of $180.5 million. The company didn't provide comparable year-ago figures.

Looking ahead, Chipmos forecast first-quarter revenue of about $170 million to $174 million, a 4% to 6% sequential decline. Analysts project revenue of $170.5 million. Shares were trading down 39 cents to $7.12.

Shares of

eCollege.com

( ECLG) slipped even though the information services provider posted better-than-expected fourth-quarter earnings. The company reported earnings from continuing operations of $2.4 million, or 11 cents a share, on revenue of $13.9 million. Analysts anticipated earnings of 7 cents a share on revenue of $14.1 million. In the year-earlier period, the company earned $1.3 million, or 5 cents a share, on revenue of $11 million.

For the first quarter, eCollege continues to project earnings of 6 cents to 7 cents a share, with revenue of $14.7 million to $14.9 million. Analysts forecast earnings of 7 cents a share and revenue of $14.8 million. Shares were down 2 cents to $16.58.

Other technology movers included

Microsoft

(MSFT) - Get Report

, down 17 cents to $27.23;

Intel

(INTC) - Get Report

, down 9 cents to $19.14;

CMGI

( CMGI), up 9 cents to $1.89;

Sun Microsystems

(SUNW) - Get Report

, down 6 cents to $6.25;

Qualcomm

(QCOM) - Get Report

, up 18 cents to $43.39;

Sirius Satellite Radio

(SIRI) - Get Report

, up 1 cent to $3.24;

Apple

(AAPL) - Get Report

, down 56 cents to $89.44; and

Level 3 Communications

(LVLT)

, down 3 cents to $6.19.