Hello! I am not sure about free certifications. But I have learned a few things through here: http://howilearnedtocode.instapage.com/ They provide you with an actual certificate that has a record number and can be used for professional employment references (many take them for that) I took iOS S...
You can use any theme for this purpose. and for the functionality you have to build a WP plugin that will offer the features. I build a similar plugin a year ago for one of my clients. It may cost 1K USD to build the plugin.
Hi I work with a lot of startups. You're welcome to contact me so that I can get to you know better and help connect you with them. I'm also currently working with a friend on starting our own startup (after completing a previous one). He is also very talented (programmer / Data analyst and other...