Edwardsville-Glen Carbon Chamber of Commerce: Young Professionals Group Learn from a Leader Breakfast @ SIUE Birger Hall from 8 to 9 a.m.

Greater Belleville Chamber of Commerce: Coffee Cup Connections from 8:15 to 9:15 a.m.

Edwardsville-Glen Carbon Chamber of Commerce: Executive Committee meeting from noon to 1 p.m.

O'Fallon-Shiloh Chamber of Commerce: Holiday Party @ The Regency Conference Center in O'Fallon from 5 to 8 p.m.

Edwardsville-Glen Carbon Chamber of Commerce: SIUE Environmental Science Presentations @ Watershed Nature Center in Edwardsville from 6 to 7 p.m.

Wednesday

Edwardsville-Glen Carbon Chamber of Commerce: Professional Education Committee meeting @ Caffe Avanti in Edwardsville from 8:30 to 9:30 a.m.

Collinsville Chamber of Commerce: Networking Lunch @ Knights of Columbus in Collinsville from noon to 1 p.m.

Thursday

Greater Belleville Chamber of Commerce: Community Service Agency Committee meeting @ 9 a.m.

Maryville-Troy-St. Jacob Chamber of Commerce: Chamber Board & Ambassadors meeting @ Tri-Township Library in Troy from noon to 1 p.m.

Maryville-Troy-St. Jacob Chamber of Commerce: Chamber Business After Hours @ BlindQuest in Troy from 5 to 6:30 p.m.

Collinsville Chamber of Commerce: Business After Hours @ Home Federal Savings and Loan in Collinsville from 5 to 7 p.m.

Chamber of Commerce of Southwestern Madison County: Business After Hours @ Gateway Regional Medical Center in Granite City from 5 to 7 p.m.

Friday

Greater Belleville Chamber of Commerce: West Belleville Promotional Committee @ Lindenwood University-Belleville @ 8 a.m.

Fairview Heights Chamber of Commerce: Business & Bagels @ Caseyville Township Community Center in Fairview Heights from 8 to 9 a.m.