Brainboard.

Your message will be left on a custom "sticky".

Relevant adverts will be interpersed, on a dark background.

Your note will contain your: name, profession, title and idea.

You can mix up the ideas on the brainboard to create new ones.

You can build up a team that way, and mix and match ideas...

As the brainboard gets really full, it could be interesting to correlate the data...