- OLC
- Online Learning Center (Community » Educational)** Oglala Lakota College (Academic & Science » Universities)** Ohio Library Council (Community » Educational)* On Line Contest (Community » Sports)* University of Otago Language Centre (Academic & Science » Universities)* On-Line Content (Computing » Networking)* On- Line Classroom (Academic & Science » Universities)* On- Line Classroom (Community » Educational)* Ohio Leadership Conference (Community » Conferences)
Abbreviations dictionary. 2012.