Intel Corp.'s second-quarter results bolster the company's position that the computer business is on the mend after its roughest patch in years.

Seventeen more cable TV networks said Tuesday they are joining an online video trial by Comcast Corp., a move that tacitly acknowledges advertising isn't enough to support shows streamed over the Internet.

Having been a step behind in the race to pipe entertainment from the Internet to TV screens, struggling video rental-chain Blockbuster Inc. is counting on a new partnership with Samsung Electronics America Inc. to regain ground on rival Netflix Inc.