30 Boxes
http://30boxes.com
An online calendar service that lets users organize their month, day, and year with information from various social networks.

Basecamp
http://www.basecamphq.com
A project management tool from 37Signals. It helps groups organize tasks, share files, and track progress.

Blist
http://www.blist.com
A Web-based list making tool that lets you collaboratively create and share with friends.

Campfire
http://www.campfirenow.com/
A team collaboration tool that focuses on file sharing and live chat. It also integrates with the rest of 37Signals' collaboration services.

Clarizen
http://www.Clarizen.com
A collaboration tool for teams to sync up their schedules and files. Also provides a tracking system for project status so all members can see how far along they are.

ConceptShare
http://www.conceptshare.com
A feedback tool for designers to share and track changes and recommendations with asynchronous feedback.

Dabble DB
http://dabbledb.com
A hosted database that offers multiple ways to explore your data.

Etelos
http://www2.etelos.com/
Gives companies a way to offer up their software as an online service, both with a marketplace and a distribution platform.

FreshBooks
http://www.freshbooks.com/
Puts invoices and time tracking in your browser, letting you manage your business in the cloud.

Google Calendar
http://www.google.com/calendar
Puts your personal calendar in the browser, and lets you create and manage appointments and subscriptions to Web calendars in the same place.

Google Docs
http://www.google.com/docs
A collection of online office programs including a word processor, spreadsheet tool, and a presentation maker.

Intuit QuickBase
http://quickbase.intuit.com/
An online database creation tool. Users can create and maintain databases right in their browser.

Jiffle
http://www.jifflenow.com/
A tool that helps multiple parties find good times to get together for a meeting.

Liquid Planner
http://www.liquidplanner.com/
A Web-based project management tool that includes time sheets reporting, scheduling, and group discussion.

LogMeIn
https://secure.logmein.com/products/free/
Lets you log into and use multiple computers remotely without any special hardware.

Microsoft Office Live Small Business
http://smallbusiness.officelive.com/
Gives businesses a free Web site and domain name registration, along with e-mail and shared storage.

Mint
http://www.mint.com/
An online finance management tool. Can track spending, credit cards, and bank accounts..

Octopz
http://www.octopz.com/
Both a real time and asynchronous collaboration tool that lets a group of people conduct a Web meeting or track changes and recommendations on a project.

Office Live Workspace
http://workspace.officelive.com
Microsoft's tool for sharing Office documents and mission critical files between multiple users.

Officezilla
http://officezilla.com/
A module-based productivity tool. You can custom tailor to match the types of tasks you're using it for.

Peepel
http://www.peepel.com/
A suite of Web-based office tools including a spreadsheet editor and an online word processor.

QuickBooks Online
http://oe.quickbooks.com/
Lets you manage your business online by creating invoices that can be tracked alongside expenses.

Quicken Online
http://quicken.intuit.com/online-banking-finances.jsp
Shows what's left in your bank account, your risk of overdraft, your risk of a low balance, and the expected spending you will incur in the next 30 days.

Remember the Milk
http://www.rememberthemilk.com
Makes your to-do items and reminders available in Gmail, via SMS, the iPhone, Windows Mobile devices, Skype, and popular IM clients.

Salesforce
http://www.salesforce.com/
A hosted tool for businesses to keep track of current customers and potential ones.

ThinkFree Online
http://www.thinkfree.com
A suite of free Web-based office applications including a word processor and shared storage for group files.

TimeBridge
http://www.timebridge.com
Helps multiple parties find a single time to meet based on each other's availability.

Wesabe
http://www.wesabe.com/
An online finance tool. It specializes in helping you save money where it finds you're spending too much in certain areas where you could be saving.

Yahoo Calendar
http://calendar.yahoo.com/
Yahoo's online calendar is deeply integrated with Yahoo's Web e-mail service and lets users schedule out their days, months, and years.

Zoho
http://www.zoho.com
A collection of online office tools, from word processing to personal productivity.