IR data bases on internet and in books

 Dear colleagues,
 I am sorry, if I repeat someone's recent question. Can you advise
 the IR data bases on internet or good data collections in easy
 available books? I am particularly interested in small organic and inorganic
 molecules. Normally, I find them via citations in theoretical papers
 in QCLDB, but it does not work all the time.
 Anatoli Korkin