Basecamp became an Intranet for us. It is one of my homepages in my browser.

We use Google Apps for our email. I use Outlook together with it, and it works perfectly.

We often have to do conference calls, and Skype saves us long-distance tolls. For a conference call, Skype is actually better than a normal phone because your hands are free. The voice quality is often better than a speaker phone, and there are useful widgets. We used one of them to share screens to discuss about a website.

I am sure most of you know this. So useful for a quick communication.

If you need a simple wordprocessor, spreadsheet, and presentation, Google docs will do a reasonable job for you.

An excellent tool for design collaboration.

Once your web design is up on the server, Sharedcopy is very useful. When you notice something to fix on your website being developed, Sharedcopy lets you annotate and share. It also works with Basecamp.

If you want to share some bookmarks with your team, Diigo is the best bookmarking tool. You can make a bookmark private, or you can share it with a group. Of course you can make it publlic.

Web-based Subversion repository. If you are not a programmer, Subversion is a versioning and collaboration tool for programming. Though I am not a programmer, I use it sometimes to change texts in a website, etc. Additional benefit of using Springloops is that you have a natural backup for your website source codes.