My first topic would be Cape related.
The first of many to come i hope : that would mean this wiki is stong and same for Summer's news. As you experienced Blazius, this wiki has a News and a Forum section; il like the fact that they are independant but also naturally and easily connected at the same time.
Back on topic : fist of all being on one of the three or four largest broadcast networks (ABC,CBS,NBC and i include Fox) means you get more attention. More attention from the viewers of the show of course but not exclusively. Every media (press, television, radio, online site) is going to refer to the shows on the big 4. I don't read US tv press but i guess "The Cape" had some article, if only the schedule and credit to the cast or ratings. I give you an online example : "The Cape" had a fair amount of coverage on spoilertv.
That was the same on a lot of other online sites (entertainemnt-focused or not).
When NBC decided to promote the show on December 2010, Summer Glau and David Lyons were the public faces of the show; they even had an interview during the Macy Parade on NBC.
That makes a lot of opportunities for Summer Glau to show up and not only one hour every Monday evening.
I think wiki members and lurkers could find interesting point of views on a thread i made one month ago, when it was blatant that The Cape was going to be cancelled :
The Cape was a blessing for Summer!