When trying to download Adobe Reader from Adobe, currently they force you to either pick an old version (8.x) or to pick the current version (9.2 ATM) but bundled with their lame Air framework. Yet there is still a version without Air available from their FTP, it’s here:
ftp://ftp.adobe.com/pub/adobe/reader/win/9.x/9.2/enu/AdbeRdr920_en_US.exe (NB: if a new version becomes available, try browsing this (or a higher level for major version changes).
Update on 2010-10-17
Update on 2010-12-05
Same about Adobe Reader X, this one doesn’t contain AIR either. Or at least the one I found there doesn’t. Looks like they definitely dropped tie-in downloads.
Update on 2011-03-23
Depending on the browser you use, the download page will vary dramatically. Some may get the “clean” download (no AIR, no Google toolbar, etc) – that’s what I get with Firefox 4 -, some may get the “big dirty pack” – that’s what I get with MSIE 9. So, the updated FTP link is ftp://ftp.adobe.com/pub/adobe/reader/win/10.x/10.0.1/en_US/AdbeRdr1001_en_US.exe, and in case of update, browse from there: ftp://ftp.adobe.com/pub/adobe/reader/win/10.x. Thanks to Sam Prince for the report!