No
No
Yes.
NO!!! if anyone ever tells you you have to pay for a mod, they are scamming you!!! You have to do technical stuff and get extra apps to set up mods.
No, go to Google.com and type Oblivion Mods. You should have numerous sites to choose from.
Joining enables you to download bigger mods so if you like mods, Yes.
Mods (modifications) are free. You do not need to pay, however, you do need to be able to download them. Use Magic Launcher or Forge to do this.
All minecraft mods are free if you have to pay for it its illegal. you only need to pay for a premium account.
no all u need to do is make a free account at fileplanet. u can pay as a member for supposably faster downloads but a free account works fine.
No, Minecraft mods do not cost money, and are completely free of charge. I have never ran across any mods that require you to pay. In the related links below is a rather extensive list of mods, in the official forum for Minecraft. If you really enjoy the mods, in the thread, some mod makers provide a donate button. OptiFine specifically will award you for donating by giving you an OptiFine cape, visible only to other OptiFine users!
mods, mods, mods
moddb.com is good for mods. It has mount and blade mods and mods for virtually every other game.
No. All mods are free to my knowledge, unless you want to pay to get a custom personal mod.