Another marketing firm uses the service to subcontract out copy writers, search engine optimization workers and web developers.

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Web Workers, for instance, is an emerging system for isolating a browser's individual tasks into separate "threads, " making it easier for a browser-based program to perform a computationally intensive task such as photo-editing in a background tab while the user is attending to something else, like e-mail, in the foreground.

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It has installed Internet phone service for 2, 400 workers worldwide and enabled Web seminars for up to 12, 200 people at once.

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