Mathematical:
- Leiden syllabi (Galois Theory for Schemes is particularly useful)
- Notes by J.S. Milne
- MathOverflow
- Mohamed Barakat
- Frits Beukers
- Gunther Cornelissen
- Valentijn Karemaker
- Reynald Lercier
- Elisa Lorenzo García
- Christophe Ritzenthaler
- Samir Siksek
- John Voight
Personal interests: