MARS — My School Preschool at the Mars campus of the Dutilh Faith Communities is registering students for the 2013-14 school year.

Space is available in the two-day-per-week 3-year-old program and in the “Lunch Bunch” 2-year-old program.

For more information, call the My School Preschool director, Jill Ceasar, at 724-625-1610 or visit myschool@consolidated.net or www.myschoolpreschool.org.

EAST BUTLER — The Alliance of Bikers Aimed Toward Education Butler Chapter will host its fifth annual Motorcycle Swap Meet from 8 a.m. to 4 p.m., Saturday at the East Butler Fire Hall, 808 Grant St.

CRANBERRY TOWNSHIP — Butler Health System's Foundation will celebrate a “Run for the Roses” at its annual fundraiser, the Crystal Ball, beginning at 5:30 p.m. March 16 at the Pittsburgh Marriott North in Cranberry Township.The event will be black tie optional, feature Kentucky Derby-themed festivities and include a cocktail hour, a silent auction, live auction, basket auction, sit-down dinner, Triple Crown Horse Racing and dancing.For more information, call the BHS Foundation before March 8 at 724-284-4716 or send an e-mail to kris.bowser@butlerhealthsystem.org.

ADAMS TOWNSHIP — Mars Library, 107 Grand Ave., will hold a book sale from March 6 to 10.The preview sale for Mars Library cardholders will be from 4 to 6 p.m. March 6, and each participant must present an admission ticket. No booksellers will be admitted to the preview sale.The regular sale times are 11 a.m. to 7 p.m. March 7, 10 a.m. to 6 p.m. March 8, 9 a.m. to 5 p.m. March 9 and 11 a.m. to 3 p.m. March 10.Proceeds will benefit the library.

CRANBERRY TWP — A six-hour course in responding effectively to life-threatening emergencies will be offered March 9 in the Cranberry Township Municipal Center, 2525 Rochester Road. Students will learn first aid, CPR and AED use and have the opportunity to receive two-year Red Cross certifications.Register in advance at the information desk of the parks and recreation department, by phone at 724-776-4806, Ext. 1129, or online at www.cranberrytownship.org/programs.

MIDDLESEX TWP — Free computer classes will be offered beginning the week of March 11 at the Lighthouse Foundation, 1302 East Cruikshank Road.Classes will include computing for beginners, Microsoft, Excel and Microsoft Word.For more information, call Dave Miller at 724-586-5554, Ext. 34.