Have you thought about searching your history of internet pages to see if you can find it again??
If you have favourites bar click it to open it and then go into history. It will give you a time frame to search (today, last week etc) click relevant timeline and should show websites visited in that time frame. Click website you want (hubpages in this case) and then it will list pages on that site you have visited. Hopefully then you will remember title of site as you see it on the list of pages (or you can re-visit them all one by one to find it). hope this helps in your search.
For future reference when reading something to go back to bookmark the hub and it will save it to return to.