Jewish Virtual Library
Yeshivat Har Etzion
YU Torah - Audio shiurim
Aish.com: Aish HaTorah
Ohr Somayach
The Orthodox Union (OU) - Jewish law, concepts, history, holidays, Torah portions, essays & more
Hebrewbooks.org
ויקיטק
Misukim MiDevash
Shema Yisrael Torah Network
Bar-Ilan University Parashah commentaries in Hebrew and English:
Rav A. Y. ha-Kohen Kook
E-Daf - Daf yomi page & audio shiurim, & more