Here are some slides I used for seminars.
Bezout's theorm
Picard group
Spectral sequences
Ostrowski's theorem
Some useful links:
https://math.stanford.edu/~vakil/conferences.html - Conferences in algebraic geometry
https://www.atmschools.org/ncm-workshops-ncmw - NCM workshops
https://iwm.org.in/ - Indian Women and Mathematics
https://terrytao.wordpress.com/career-advice/ - Career advice by Terrence Tao
https://mathmeetings.net/ - Conferences and workshops in Math
https://math.stanford.edu/~vakil/threethings.html - Advice on listening to talks by Ravi Vakil
https://kconrad.math.uconn.edu/blurbs/proofs/writingtips.pdf - Tips on Mathematical writing
https://mtts.org.in/ - Mathematics Training and Talent Search Programme