Gmail

• ActiveInBox  - Take control of multiple gmail accounts with a Chrome and Firefox plugin. Organize email, track actions, and manage projects.
• CloudMagic  - Cloud data search solution enabling Gmail, Google Docs, Calendar, and contacts searches without Internet connection.
• Gmail  - Free email service with a powerful search feature, continually growing storage space, and integrated instant messenger.
• GMail Drive  - Shell namespace extension that creates a virtual file system around a user's Gmail account -- enabling Gmail as a storage medium.
• Gmail Notifier  - Application designed to provide desktop alerts upon receipt of a new Gmail message.
• The Gmail Resource  - Provides Gmail invites, tutorials, answers to frequently asked questions, articles, forums, and other resources.
• MailSlayer  - Provides additional features for Gmail such as the assigning of labels to contacts, adding of notes, and creation of email snippets.
• SkinGmail.com  - Resource for Gmail skinning. Provides downloadable files and quick guides.
• WriteThat.Name  - Easiest way to keep Gmail accounts updated. Once an email is received, your account is search names are matched, and if need be necessary name/address changes are made.