Collaboration is about implementing solutions to enable your people to work together more effectively – promoting and facilitating team work. This may be through more effective use of applications you already have (e.g. email, calendaring) or deployment of additional solutions to support intranet, document management, workflow.
If you believe improved collaboration can add to your bottom line then, given leadership from the top and sustained support from within your organisation, there are a number of areas which are worth examining.