Check out the Internet Archive's GifCity search engine!

dashcloud shared some links said

Hi fellow Mehricans, for the Internet Archive’s 20th anniversary celebration, they built a search engine for all the GIFs on GeoCities:

Behold, for your viewing pleasure, over 4,500,000 animated GIFs (1,600,000 unique), searchable based on filename and URL path, with most GIFs linking to the archived GeoCities web page where it was originally displayed.