Be Careful! Think very carefully about new page names. You get one chance only. Once you make a new page, you cannot delete it. Be sure your page name is clear, saying exactly what you mean, so others can understand it. Spell well.
For some page naming ideas, see GoodStyle
This is not true on ComancheSwiki. You can change a page's name just fine.
1) Modify an extant page to include a new page name. In other words, add a new word, the page name, to an extant page.
Example: *Denotational Semantics Of Perl*
This page does not exist, yet. After it is typed, and saved, the server adds a question mark link, which leads to a blank page form, where the page may be entered. Click the question mark to get to the blank page form.
2) In a browser, type a URL for a new page that doesn't exist yet. The URL must end in a word with embedded capitals. The server serves a null page with the usual trailer offering to edit the page. Click the trailer to get to the blank page form. (I don't think this second method works for the current version of the Swiki server. -Doug Way)