Send Calendar items to the North Bay Business Journal, Attn: Calendar, 427 Mendocino Ave., Santa Rosa, CA 95401; fax 707-521-5292; or email news@busjrnl.com.This WeekHabitat for Humanity - National Women Build Week

Sponsor: Lowes and Habitat for Humanity

Date: May 7-13, 7:30a.m.-2:00p.m. Cost: Free

Place: Sonoma-Cutrer Vineyards, Windsor

Info: 707-578-7707North Coast Business Exchange- Confined Space Seminar/Workshop

Sponsor: North Coast Builders Exchange

Date: May 8,  8:00 a.m. - 12:00 p.m. Cost: $70 per person

Place: NCBE- 1030 Apoollo Way Santa Rosa

Info: Hallie Fraer 542-9502Creative Solutions with Difficult People, In the Workplace

Sponsor: Volunteer Center of Sonoma County

Date: May 10,  8:30 a.m. - 12:30 p.m. Cost: Call for info

Place: 153 Stoney Circle, Santa Rosa

Info: Brian Martens 707-573-3397Specialized Training Class: Water Audits

Sponsor: PG&E

Date: May 11, 8:30 a.m. - 4:30 p.m. Cost: e-mail for info

Place: Sonoma County Water Agency, Santa Rosa

Info: www.pge.com/energyclassesComing Up2012 Construction Conference

Sponsor: North Bay Business Journal

Date: May. 15, 7:30 - 11:30 a.m. Cost: $49/person; $510/table of 10

Place: Fountaingrove Inn, Santa Rosa

Info: www.northbaybusinessjournal.comWhere Did it All Go?

Sponsor: Michael Anderson & Company, Inc.

Date: May. 17, 6 p.m. Cost: $45 (dinner included)

Place: Hilton Sonoma Wine Country, Santa Rosa

Info: 707-573-032615th Annual Anderson Valley Pinot Noir Festival

Sponsor: The Anderson Valley Winegrowers Association (AVWA)

Date: May. 18 - 20 Cost: $50 - $130

Place: locations vary

Info: www.avwines.com29th Annual Catfish Derby

Sponsor: The Clearlake Oaks/Glenhaven Business Association

Date: May 18 - 20, 12 p.m. Cost: $40 - $45

Place: Clearlake Oaks Fire Station

Info: www.clearlakeoaks.orgProfessional Development Day

Sponsor: Santa Rosa Young Professionals Network

Date: May 23, 8 a.m. - 1 p.m. Cost: $45- $70

Place: Finley Community Center, Santa Rosa

Info: www.santarosaypn.com