When you need to work together, all you have to do is Wave.

Google Wave is a new technology that allows for synchronous and asynchronous collaboration via the internet. From the video about Wave, it appears as though this has the ability to replace the need for email and IM as Wave can do everything these technologies do and more. One of the features that is beyond the capabilities of IM or email is the ability to collaboratively work on the same document at the same time from different places in real time. This reduces the need for people to update a document and email it back and forth. Another example of additional features beyond that of IM and email is the ability to type like an IM and have the screen update for others in the Wave character by character in near realtime. This reduces wasted time due to waiting to see what someone is going to type. Another cool feature that I saw was Wave's ability to handle things like pictures. The Wave can take all of the pictures from everyone and quickly turn them all into a photo album. I believe this is going to greatly change the way people work together remotely. I have asked to be a trial user for this and I think everyone should try it.

References:
(n.d.). About Google Wave. Retrieved April 23, 2010 from http://wave.google.com/about.html