Here's a list of the web-based software apps that I suggest all small, medium and large companies checkout for running your business... (all are free except QuickBase)

http://www.evernote.com is a great sync'd note taking solution (many platforms, all get sync'd)
http://www.google.com/voice is the Google Voice and call forwarding app
http://www.google.com/wave is their collaboration app which allows a team to easily collaborate instead of back & forth with email
http://www.rememberthemilk.com task mgmt system that you can also use with others
http://connectnow.acrobat.com web collaboration software that starts at free
http://freeconference.com  for free conf calls with a dial-in # in Iowa
http://drop.io, http://box.net and http://dropbox.com are good file sharing solutions to check out, and the first 2GBs are free
http://www.hootsuite.com is for managing your Tweets on Twitter (and also Facebook and LinkedIn)
http://www.diyplanner.com  good print out templates (Daily or Weekly Planner pdfs to print)
http://www.blogger.com  BLOG platform if you were thinking about getting into that
and
http://www.quickbase.com is a highly flexible, web-based data sharing solution (it's like sharing a spreadsheet, over the web, on steroids -- it's actually a relational database that supports uploading from Excel)