I'll quote this directly from the letters page of the new RSPB magazine...
If just 10% of the RSPB membership used Everyclick as its internet search engine, the RSPB could earn £288,000 each year. Everyclick gives half its revenues to charity: you can specify which one. Please change your search engine to Everyclick and register the RSPB as the charity of your choice by going to www.everyclick.com
Alternatively, if you don't want to register you can just use/bookmark the search page I've created there which is already set-up to benefit the RSPB.
Truth be told, after using it for about a week Everyclick is pretty poor compared to the big famous leaders in the field. My opinion is that it will probably be useful for general searches, but for any detailed bit of info you'd do better to try Google (unless of course you're in China).