Hey London. I have had to search for London, Ontario's hashtag more than once, and I think I know why. It's because it sucks. I understand that #london wasn't available, but #ldnont is unintuitive. It could be improved in a few ways.
Have you wondered how some people's blog and news stories turn up in Google's search results with their picture beside it? It's called claiming authorship, and with Drupal, It's not as difficult as you might think. Here is one way you can claim authorship in Google's search results with Drupal. If you have a GMail account, enable your Google+ profile. When you aren't logged in to Google, the link at the top left will show "+You", and it will show "+" when you are. In Google+, set a profile picture.