[FooHentai]

I don't have a personal platform for this, but am uploading missing content to existing ones I know of:

lvlworld.com - Curated, the polished and more playable end of the spectrum

en.ws.q3df.org (Worldspawn Archive) - Mostly focused on defrag (trick jumping) maps but has a lot for the standard game mixed in.

Excessive Plus's FTP server at ftp.excessiveplus.net

efservers.com/maps.php Elite Force Map Search. Has a lot of regular Q3 content buried amongst the Elite Force stuff.

[bartread]

Ah, marvellous - thank you!

[FooHentai]

If it's of interest to you there's now also a magnet link up over on quake3world. Comes to about 50Gb.