Remote cooperation

We are constantly being told we are living in a shrinking world, but for many the opposite seems to be the case. Our work is increasingly being done out of the traditional office environment: whilst traveling, at clients' premises or at home. We are living further from where we work and we work for global organizations and our colleagues and contacts may be in different countries or different continents. At the same time our lives are more and more dependent on constant access to information and one another, but our connectivity whilst on the move or at home is often far less efficient than that of the fixed office. How do we work cooperatively when we are so far apart?