One of the most interesting things on there is a comparison of effects of various classroom and additional interventions on achievement, with costs of these various interventions and strategies factored in. It's informed by research (although the site does point out that some strategies have limited research available), and you can check the evidence base for each judgement by clicking on the strategy.
One-to-one tuition adds an average of five months of progress, which seems a bit of a no-brainer. Interestingly, homework also adds exactly the same amount on average, provided it was useful, linked to classwork and effective feedback was given. It's also really nice to see that mastery had the same impact (+5 months), particularly as I'm so invested in the mastery curriculum idea with our current KS3.
Small group tuition also provided decent gains (+4 months), provided the group size is sufficiently small and work is targeted to specific needs. Evidence seems to suggest that group sizes of greater than 6 or 7 reduces the effectiveness.
It's worth having a look at and playing around with; I don't know whether this will stimulate any huge national shifts in strategies used in schools - after all, most secondaries still set, despite years of evidence to the contrary, but it provides interesting reading all the same.