11.   And over the last few months, sports clubs, ever seeking newer and more unusual offerings, have begun to offer classes in circus skills.

12.   Ballet Theater is offering classes on weekday evenings for adult dancers, both on professional and novice or amateur levels, taught by company ballet masters.

13.   Both Great Oaks and Warren County career centers will begin to offer virtual classes to adults in October.

14.   A growing number of colleges are offering on-line classes.

15.   A nonprofit competitor is Virtual High School, a Concord Consortium project, based in Concord, Mass., that offers online classes to students in participating schools nationwide.

16.   About a dozen law schools offer classes in animal law, including the University of Vermont, Georgetown University, and the University of California at Los Angeles.

17.   After almost a decade, he began to offer classes occasionally.

18.   After years of ignoring the market, Chicago itself began offering executive classes a few years ago.

19.   Allen said she started offering the classes to make sure women, especially African-American women, were represented.

20.   Canyon Creek Anglers, a fly-fishing shop in Phoenix, will offer classes at Oak and Tonto creeks.