Amazon.com

(AMZN) - Get Report

posted a first-quarter loss of 23 cents a share, 6 cents narrower than the 21-analyst

First Call

outlook but deeper than the year-ago loss of 7 cents. Revenue rocketed to $294 million from $87 million a year earlier. The Internet retailer said that, since March 31, 1998, cumulative customer accounts rose to 8.4 million from 2.3 million. Accounts hopped 2.2 million from the fourth quarter. Amazon shares reportedly fell more than 15 points in after-hours trading from their New York close of 193 1/2.

TheStreet.com

updated a morning preview of the earnings report.

In other postclose news (earnings estimates from First Call; earnings reported on a diluted basis unless otherwise specified):

Earnings/revenue reports and previews

Comforce

(CFS)

said it expects to report a first-quarter loss of 7 cents to 9 cents a share compared to its year-ago loss of 3 cents. The company blamed the news on a decline in demand from

Boeing

(BA) - Get Report

, its largest client, and lower revenue from its information technology unit. The single-analyst forecast called for earnings of 2 cents.

Harman International Industries

(HAR)

reported third-quarter earnings of 72 cents a share, 2 cents ahead of the six-analyst view but down from the year-ago 80 cents. The company said it expects to report fourth-quarter earnings of $1.15, matching estimates, and full-year earnings of $4, topping estimates of $3.16.

Jefferson Pilot

(JP) - Get Report

reported first-quarter net earnings of $1.19 a share, including gains. The eight-analyst view called for operating earnings of 89 cents vs. the year-ago 78 cents.

In other earnings news:

Offerings and stock actions

Alternative Resources

(ALRC)

said it will buyback 1 million shares, or 6.25% of its outstanding stock.

Credit Suisse First Boston

priced

Informatica's

(INFA:Nasdaq) 2.75 million-share IPO above range at $16 a share. The company makes software. Elsewhere in new issues,

BancBoston Robertson Stephens

priced

MPath Interactive's

(MPTH:Nasdaq) 3.9 million-share IPO above range at $18 a share. The company develops Web software.

Televisa

(TV) - Get Report

set a 10-for-1 stock split.

Young & Rubicam

(YNR)

filed to offer 15 million shares in a secondary offering.

Miscellany

Raytheon

(RTNA:NYSE) said its chairman, Dennis Picard, will retire July 31 and that CEO Daniel Burnham will take over the post.

Trigon Healthcare

(TGH) - Get Report

said Chairman and CEO Norwood Davis is stepping down as CEO and will be replaced by President and COO Thomas Snead Jr. Snead will take over as chairman a year from now.

Markets Editor John J. Edwards III contributed to this story

.