The Mathematics Subject Classification is a useful tool for searching MathSciNet, Zentralblatt, or any other resource that uses this classification system. Browse or search the file to find all classification numbers related to your topic of interest.
The Acronym Server has a large collection of acronyms for computer science and other disciplines, searchable by acronym and word.
This list of Science and Engineering Journal Abbreviations includes many journals in mathematics and related fields.
