Here you can find many Minecraft websites from communities, to blogs, and more.


Main Websites:

Minecraft
The official Minecraft website.
Minecraft Forums
The official Minecraft community forum.


Blogs:

Notch's Twitter
The official twitter of the creator of Minecraft, Notch.
SMP's Texture Blog
The texture blog of SMP, and where he releases new texture updates.
The Word of Notch
The official blog of the creator of Minecraft, Notch.


Communities:

The Archives
A Minecraft community for The Archives server.
CraftHub
A Minecraft help website and community.
The Minecraft Coalition
A peaceful coalition, aiming to co-operatively and constructively improve the community.
The One's Community Central
A Minecraft community focused around The One's Minecraft Servers.


Galleries:

The Minecraft Museum
A simple and clean Minecraft gallery.


Skins:

The Skin Index
A site to share and vote for Minecraft skins.


Wikis:

Minecraft Wikia
A smaller yet useful Minecraft wiki.
Minepedia
One of the largest Minecraft Wikis to date.