The variety of online tools to help us organize our lives, work with others, and generally get stuff done is just exploding. I've tried to capture some in the list below, but I'm hoping you, dear readers, will leave a comment naming some other tools you like to use.
Webmail
• Gmail - threaded conversations, search
Chat
• Google Talk (integrates conversations with Gmail)
Real-Time Group Collaboration
• Basecamp
• Campfire
• Stickam: group videoconferencing
• Skype: 1-on-1 tele- & videoconferencing, chat, file xfer
File-Sharing
• DropSend (1 GB max size)
• Wikisend (100 MB max size)
Wikis
• WetPaint
Document Sharing
• Google docs
Microblogging
• Twitter
Personal Time Management
• Remember the Milk - Web-based to-do list & task organizer with multi-media reminders
Social Bookmarking/Referral
• Delicious - "Delicious is a social bookmarking service that allows users to tag, save, manage and share web pages from a centralized source. With emphasis on the power of the community, Delicious greatly improves how people discover, remember and share on the Internet."
• Digg - "Digg is a place for people to discover and share content from anywhere on the web."
Note Management
• Evernote: Desktop + Web, with wicked OCR for images
RSS Readers: Google Reader
Personalized Home Page: iGoogle