
Critical.
Authoritative.
Strategic.
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Authoritative.
Strategic.

Gbridge, an extension of Google's Gtalk network service, allows Google Apps users to securely sync folders, share and back up files, chat, and access desktops remotely. Gbridge is also well-known for being able to automatically form a peer-to-peer VPN between users' computers if they are logged in under the same Gtalk user account. Gbridge 2.0 fully supports Google Apps accounts, making it easy to create a VPN at Google Apps shops.
Price: Free