commalg.org (News, job postings and conferences on commutative algebra)
ATM Schools (for workshops and schools in India)
Old Question Papers & Answer Keys:
MathSciNet (maintained by AMS), My profile.
arXiv: math: Commutative Algebra, Algebraic Geometry My articles in arXiv.
Web of Science, My profile.
ResearchGate, My profile.
Google Scholar, My profile.
https://www.scijournal.org (to know Impact Factors of the Journals)
https://www.scimagojr.com (to know SJR, i.e., Scimago Journal Rank)
https://www.ilovepdf.com (Merge, split, compress, convert, rotate, unlock, watermark and edit PDFs)
https://convertio.co (Convert your files to any format, e.g., rar to zip)
https://resizeimage.net https://picresize.com/en (Crop, rotate, resize and change format images)
https://cloudconvert.com/rar-to-zip (Convert rar to zip)
https://www.adobe.com/in/acrobat/online/password-protect-pdf.html (Protect PDF by password online)
https://smallpdf.com/protect-pdf (Protect PDF by password online)
https://www.indiabookstore.net (Compare book prices and buy online)
https://www.grammarcheck.net/editor/ (Free Grammar Checker, Online Editor)
https://djvu.js.org (Open and view DjVu files online)
https://www.overleaf.com (For online LaTeX)