Serious technical problems that have delayed the rollout of an upgrade to SAP's community portal are persisting, to the point where the company is no longer specifying a launch date.

SAP has abruptly put the brakes on a planned upgrade to its massive community network portal, which was set to be rolled out this month, due to a number of lingering, "critical" bugs.

Severe performance issues with the USAjobs.gov careers portal have been alleviated and an array of internal moves are afoot to ensure its long-term success, U.S. Office of Personnel Management Director John Berry told members of the House Committee on Oversight and Government Reform on Tuesday.

Yahoo's improving stock price following a CEO shakeup makes the Internet portal ripe for a sale, and speculation is flying about industry titans that may bid for the company.

Nginx, an increasingly popular open source Web server software program, has gotten some commercial backing.