Check out the value of a Facebook like.

Check this out!

Facebook 'like' value...

Ambient public transport/outdoor campaign

For a brand that needs awareness and exclusivity a campaign that creates special spots for people (branded with interest generating content e.g. (who is James Boag?) would be great.

e.g. specially covered seats on trains, custom built park benches or sponsored phone booths...

refer back to blog post on 500 flavours for Avis campaign for more ideas...

Groupons

See what can be done for groupons sites, social clubs etc...