Donate money to charity while you search
The NSPCC has announced an interesting initiative with Microsoft who are a long term supporter of the charity in the UK. In order to encourage people to use MSN Search they are offering to donate money to the NSPCC if people use a special site called clickscount.
The idea is simple - if you use this skinned version of MSN to key search requests Microsoft will donate money to the NSPCC for each search.
Sounds like it could be a good way for other charities to generate money from Yahoo, Ask Jeeves etc.