Internet users witnessed yet another wave of spam, worms, viruses and other online attacks in 2005, and experts predict the online world will grow even more dangerous this year.

Years after the fall of Napster, peer-to-peer file sharing programs continue to eat into entertainment industry profits. The industry has responded with an all-out legal assault targeting the programs' developers and users.

As personal information accumulates in central repositories, questions arise about its vulnerability to identity thieves, government snoops or irresponsible caretakers.

Researchers and regulators are reshaping the landscape of science, medicine and health, engendering hope -- and disquiet -- for the future of humanity.

Federal agencies are turning to the private sector to help solve complicated technical problems.

America Online Inc. is trying to find ways to keep customers coming back to its Internet community while parent company Time Warner Inc. seeks ways to expand its Internet empire.

Every move of the world's largest software maker, whose operating systems drive 90 percent of all PCs, sends ripples through the technology world.

Verizon, the nation's largest phone company and the Washington area's dominant carrier, has bid to acquire former long-distance giant MCI.