The Open University has a great site: http://www.open.ac.uk/library/services/being-digital well worth a look.
There are so many resources online that you are almost tripping over them and all the good ones are free. So start a blog and do a course and write about it. HTML is not difficult once you have the basics. Knowledge is power so be powerful – digitally. Having a blog you can see HTML at work, of course, you don’t need HTML to start a blog it’s much easier – go to http://oldercitizens.org will start you off.
Everyone should have an address on the Internet