HTTPS being added to NON-HTTPS blogs

OK I have a multisite/network install. When you go to http://sarasotamagazine.com, it works fine. The site has Woocommerce and for transactions it goes to SSL fine back to regular HTTP mode when completed. Now.. here’s the kicker- when you go to a sub-blog in the network, for example: http://sarasotamagazine.com/foodies-notebook/, the link changes to https://sarasotamagazine.com/foodies-notebook/ (HTTPS) when it should only be HTTP. Any suggestions? anybody?