Here's a list of must-have links for any New Zealand E-biz.  There's government links, NZ busines specific links, general busines links and marketing links.  

New Zealand Business

www.biz.org.nz
www.nzstartups.biz
www.yourbiz.co.nz
www.homebizbuzz.co.nz
www.businessmentor.org.nz
www.sbecnz.org.nz
www.tsbc.co.nz
www.istart.co.nz
www.nzchamber.co.nz

NZ Government
www.companies.govt.nz
www.nzte.govt.nz
www.stats.govt.nz
www.ird.govt.nz/ecommerce-tax/ecommerce-incometax

General Business
www.ecommerce-guide.com
www.onlinebusiness.about.com
www.forbes.com
www.entrepreneur.com
www.managementhelp.org/infomgnt/e_cmmrce/e_cmmrce.htm

Marketing
www.webmarketingresource.org
www.businesknowhow.com/bkinternet.htm
www.gmarketing.com
www.websitemarketingplan.com
www.searchengineguide.com/marketing.html