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Cancer Research UK empowers employees to deliver life-changing results.
When a visitor makes a donation, they enter how much they’d like to give in a box before providing their payment information. charity: water pre-fills the input

Social Impact is Our Heritage

Optimizely tested the Clinton Bush Haiti Fund landing page in 2010, helping raise an additional million dollars for earthquake survivors in a week. This proved that not only could A/B testing do great work for nonprofits, but also became the case study we presented as our public debut during Demo Day at Y Combinator.

graphical user interface, application

Code.org Gets More Student Participation