Governing‘s Better, Cheaper, Faster blog has a great post on using wikis in government. There is some great advice that everyone needs to see:

Mergel says that the best way for government managers to engage the public via technology is to use the tools themselves – officials must be seen as both engaged and engaging! As Mergel notes, public managers have to “create energy and vibrancy so that others start finding value in it.” One manager featured in the report puts it this way: “Create the party everyone wants to join.” That’s a wiki good idea.

This applies to all social tools, not just wikis. Get out there and use them!