If any of my readers wants to send me questions, or comments, about one of my blogs, you simply click on “comment” at the end of the blog. Word Press then sends it to me for my approval (unless you are a member of Word Press and/or have subscribed to my blog). I will approve and/or reply as the case may be. Word Press will also remove spam, spam in this case being someone touting their own blog, or other blogs. If I wish to read other blogs, I will either subscribe to them (as I have to several), or do a search for a topic.
I believe my regular email is available in my replies to comments. There is also a site called Feedback, though I’m not sure how available it is. I really have not explored this site as much as I should, and I also have not signed any services that require money. I simply don’t have the money on my very limited income.