Up to 120,000 dollars a year of visibility on searches related to your cause, with no media budget. On the accounts Grégory Camus has managed, the credit has served to inform the public about a cause or a support scheme, to recruit volunteers, to fill events and fundraising drives, to make research programmes known and to direct the people concerned to the right service.
The limits are known: Search network only, with no Display or YouTube; an auction held after the one for paying advertisers, hence little exposure on queries contested by commercial advertisers; a 2-dollar cap per click outside Smart Bidding. When an objective calls for more, Google itself recommends a separate paid account; we then run both accounts within the same set-up, with the same conversions.
Google publishes no average result for the programme and we promise none: the first conversation is there to set a measurable objective, donations or sign-ups for instance, and to check that the account can hold it within the rules.