A familiar scenario played out in the technology sector. The sector rebounded after a big down day as whatever it was that freaked out investors Monday has all but faded from memory.

TheStreet.com Internet Sector

index was up 52.14, or 4.0%, to 1345.11, closing in on its all-time high of 1350.16 from March 10.

Inktomi

(INKT)

was among the leading gainers, up 20 13/16, or 11%, to 209 13/16 on news that it had developed software for delivery to wireless network operators. As part of the announcement, Inktomi said it had formed alliances with six companies, including

Portal Software

(PRSF)

,

Hewlett-Packard

(HWP)

,

Spyglass

(SPYG) - Get Report

,

Sun Microsystems

(SUNW) - Get Report

,

Cap Gemini

and

AirFlash

.

Elsewhere, old and new joined forces when

America Online

(AOL)

and

Sears

(S) - Get Report

announced that they have formed an alliance that involves marketing each other's goods and services. Under the agreement, AOL's products and services will be marketed to Sears' customers at its stores. The venture also includes plans to market and sell high-speed broadband access as the market develops. AOL was up 2 1/4, or 3.7%, to 63 9/16 on the news, while Sears was up 5/8, or 2.3%, to 28 1/16.

Ariba

(ARBA)

was up 9 7/8, or 3.3%, to 307 7/8 following a flurry of

deals on Monday. After the close, Ariba announced a partnership with

American Express

(AXP) - Get Report

to develop an application through which businesses may pay suppliers completely online, either by using a purchase card or through a transfer of funds. That news followed an earlier deal with

Dell

(DELL) - Get Report

for the companies to develop a marketplace for small- and medium-sized businesses to buy goods over the Internet.

In analysts' action,

Goldman Sachs

initiated coverage of

Inforte

(INFT)

by adding it to its recommended list. Inforte is an e-business architect specializing in automating corporate chains of supply and demand. Goldman analysts placed a 12-month price target of 94-100. Goldman was the lead underwriter for the Inforte IPO last month. It was up 3 1/4, or 4.9%, to 70 1/4.

Goldman also put out a note on

Stamps.com

(STMP) - Get Report

, after the company held a conference call providing guidance for the closing of its

iShip

acquisition. The call also addressed initiatives for

Encryptix

, in which the firm has a controlling interest. Goldman analysts upped revenue estimates to $22.2 million from $16.2 million for 2000 and to $68.8 million from $52.5 million in 2001, though they noted that the acquisition "will increase losses substantially for 2000 and 2001." Loss estimates jumped to $3.62 from $2.03 in 2000 and to $2.82 from $1.22 for 2001. Goldman has not done underwriting for Stamps.com, which was was up 2, or 6.2%, to 34 3/8.

And

internet.com

(INTM)

was up 10, or 18%, to 64 1/2.

U.S. Bancorp Piper Jaffray

raised the price target on the stock to 154 from 40 and reiterated a strong buy rating. Analyst Safa Rashtchy noted that the company's revenue growth was "much faster than expected," and new operations could include "B2B exchange and auction models with 50% upside potential to our estimates."