Some.

If your library happens to be using the open source Koha OPAC, you might be able too get them to install RSS support for Amazon and iTunes like RSS feeds, but not personal notification feeds.

(Don't try to convince your library to switch OPACs. It won't work.)

Also, the iPac OPAC systems will spit out XML if you do this. The same guy did a lot with his OPAC this way - check his category for it and his posts around those dates. I ended up hooking library search into AOLIM with with the same XML interface a while ago. Too bad it wasn't my library. More OPACs need to have XML interfaces and all OPACs need to output clean and simple XML - iPac's can barely be counted as XML in spirit.

Library Elf doesn't care where you are. They're perfectly willing to support whatever. LibraryElf based out of Vancouver, BC CA (!) and they kept pushing me to get a library card at my local, since I had been to lazy to. That way they could support my local - the Chicago Public Library. Just email them and I'm sure they'd be willing. They'd probably appreciate the exposure too!

PS: Sorry about all the links here Merlin - you just asked me the perfect question, that's all.