List all booru sites

Booru sites are imageboard websites that allow users to upload and tag images, typically around specific themes or interests. They often focus on art, fan content, or niche communities. Here's a list of some popular booru sites:

**Danbooru** - A large anime imageboard that emphasizes tagging and categorizing anime-related images.
**Gelbooru** - Another anime-focused booru that allows a wide variety of content, including adult material.
**Safebooru** - A safe-for-work version of Gelbooru, containing only non-explicit content.
**E621** - A furry-themed booru that hosts a wide range of furry art, including adult content.
**Fur Affinity** - While primarily a social networking site, it also features booru-like image sharing for furry art.
**Derpibooru** - Focused on My Little Pony: Friendship Is Magic content, including fan art and screenshots.
**Pixiv** - Although it's more of an art-sharing platform, it has elements of a booru and supports tagging.
**Shimmie** - A basic imageboard script that can be used for various purposes, with several installations dedicated to different themes.
**Yande.re** - An imageboard focusing on high-quality anime art, similar to Danbooru but with a specific user base.

These sites can vary significantly in terms of content guidelines, themes, and community standards, so be mindful of what you're browsing and posting.