Worth a visit
The Euclid Consortium – A space mission to map the dark Universe
Paris Observatory – Laboratory for Space Studies and Astrophysics Instrumentation
AstroParticle and Cosmology Laboratory, University of Paris
Software and computing
iCosmo – The Initiative for Cosmology, a software suite for cosmological calculations. A useful teaching aid.
BINGO by Dhiraj Kumar Hazra – BI-spectra and Non-Gaussianity Operator
Version control with Git – A quick and easy guide to Git
Pivigo – The data science hub. What it says on the tin.