The competition challenges small, medium and large charities to get the message to their supporters that they can raise money by using as their search engine.
Five charities will be shortlisted in each category size based on the amount of money raised between October 15 and March 31.
Category winners and the overall winners will be chosen by a panel of judges based on money raised and the imaginative ways charities have encouraged their supporters to use Everyclick.
The competition first ran this year. It attracted 550 entries and was won by Diabetes UK, which has just finished its free two-week Clear Channel campaign.
The campaign helped to almost treble the number of people taking Diabetes UK's online 'Measure Up' test, which tells you if you are at risk of developing the condition, to 8,650 over three weeks.
Polly Gowers, founder of Everyclick, said: "This is one of the largest and most exciting competitions available to UK charities, offering them a chance to win an unprecedented amount of national exposure, engage supporters and source an additional revenue stream."