Blendor Sefaj

I'm currently testing out an idea: a landing page, where I'd host bite-sized software tutorials for professionals. The main idea is to list on a single page different tips & tricks and/or very short software tutorials for various office workers - ex.: "Google Sheets for Product Managers". Inside the page, I'd prepare a couple of simple steps of, let's say, how to build a burndown chart inside Google Sheets, etc. I'm having trouble determining the following: - Is this content the type of content that people really want? - What tone should I use when preparing content: more serious or more relaxed, almost casual? Have you guys any ideas on how to gauge interest for such content?