Well, fellow technophobes, I may just have cracked it. However, I'll only know once I've posted this. There is the distinct possibility that I have finally, and not without personal danger, overcome the technological problem that has plagued me for ages.
The personal danger bit was me being on the verge of pulling out what is left of my ever-receding hairline.
All I hope, is that from now on, if you like a post on here, you'll be able to link to it (and hopefully recommend it) directly on Facebook, Twitter, MySpace and a host of other social-networking sites and the like. If the one you want doesn't immediately appear, click on the "Share" button, and your choice will be somewhere on the list.
I shall be eternally grateful if you were to do so.
You'll know this works because you'll be able to read this post. If this post isn't here, I've failed.
But then, you'll never know.