I compliment you on this link, and I share Alxnjsh's issue.
One thing that I also wish was addressed was the use of 'however'.
When used at the start of a sentence and not followed by a comma, it is my understanding that it means 'no matter how much' - e.g. However many times this is explained to me, I always get it wrong. When used in the middle of a sentence, however, it illustrates a diference. Is this correct?