IIRC
(informal) If I remember correctly, if I recall correctly
http://en.wiktionary.org/wiki/IIRC
initialism — An abbreviation that is formed from the initial letters of a sequence of words. Initialisms that are pronounced as words, such as UNICEF, are usually called acronyms, so the term initialism is generally only used for those that are pronounced letter by letter, such as USA.
http://en.wiktionary.org/wiki/Appendix:Glossary#initialism
