A good selection of the 99th Floor Elevators back catalogue of remixes is available for download and streaming on Bandcamp. Any gaps in the discography (see Discogs entries) can be found via Beatport and Soundcloud, there are a few mixes floating around on our Spotify account and there are four ‘Hooked’ remixes that appeared on Suesse Records here, streaming on Soundcloud.
Other DSP’s with 99th Floor Elevators (besides Beatport) are Toolbox Digital Shop, Juno Download and mainstream outlets like Spotify, Amazon and Apple Music.
Anyone wanting vinyl and CD releases can browse Discogs who have 100s of sellers of 12-inch releases second-hand.