Some other people that post about Oblivion (and mods). This is horribly incomplete, as I am super bad about keeping my bookmarks.
Oblivion Community Discord
Kat's Blog (no, this is not KatKat)
Linux guides and creating mods
The Drunken Crafter's Inn
Clothing, furniture, steampunk, pretty things!
MissAniThrope’s Mods and guests
Under Sun and Sky, Room207
jobra888's Oblivion site
Home of Snu's Dungeons and other cool mods