I've noticed that a lot of wikis come up highly on Google, and I wonder if that's because of the number of inter-page links in the articles. I also have a template with a link to the main page at the bottom of articles. Would that help too?
Topic on Project:Support desk
I think no
Is that to adding the template, or adding the inter-article links?
Both. There is a link to the main page in the sidebar already.
So adding more links in articles will help?
No!
It has to do with search engine optimization.
What should I do to improve Google search results?
Get search engine optimization.