The issue focused largely on intellectual property rights issues but raised privacy concerns about restrictions on advertising technology by YouTube and Facebook. And Twitter sought to reassure viewers that videos hosted by Google Inc.'s YouTube Video platform could continue to stream freely online without interfering with Internet sites such as Hulu Plus.

YouTube declined to comment for this article.Federal Election Commissioner Brendan Fischer declared Thursday morning that Senator Marco Rubio (R-FL) won Florida's GOP presidential nomination despite dropping out due to injuries sustained during his bid for reelection earlier