In addition to evaluations of other charities, GiveWell publishes substantial evaluation of itself, from the quality of its research to its impact on donations. We publish quarterly updates regarding two key metrics: (a) donations to top charities and (b) web traffic.
The tables and chart below present basic information about our growth in money moved and web traffic in the first two quarters of 2015 compared to the previous two years (note 1).

Money moved by donors who have never given more than $5,000 in a year increased about 80% to $1.54 million. The total number of donors in the first two quarters increased 94% to about 6,000 (note 2).
Most of our money moved is donated near the end of the year (we tracked about 70% of the total in the fourth quarter each of the last two years) and is driven by a relatively small number of large donors. Because of this, we don’t think we can reliably predict our growth and think that our year-to-date total money moved provides relatively limited information about what our year-end money moved is likely to be (note 3). We therefore look at the data above as an indication of growth in our audience.