Hello conundrum, what exactly do you want to ask? How to use HTML in your information on ebay and google or how to add HTML to the coding of your profile on Hubpages?
I am not sure if it is possible to add your own HTML to your profile on Hubpages. The interface where you can edit the profile offers buttons to make text bold, italic or underline and to create a link. But it seems that you cannot add your own HTML to the profile.