Wiki best practice
Try to avoid using "I" and "We". It's rarely obvious who edited a given wikisection last.
Naming Wiki Pages
Pages names - like GO IDs - should stand the test of time. If you want to make a page for a consortium meeting, don't call it GO_Meeting. Call it GO_Meeting_Sept_2007 or something unambiguous.
Having a grouping page called GO_Meetings is perfectly appropriate however
Don't be afraid to move pages
If you later realize the name of a page no longer reflects the contents, use the "move" option. It's one of the tabs at the top of the page. It's quite similar (but less extreme than) obsoleting a term and providing replaced_by links. Mediawiki will take care of all the redirection for you.
Use wiki categories
These can help keep pages automagically organized
See the MediaWiki help on Categories
See for example:
Watch pages you're interested in - see the tab at the top. You can configure your preferences so that anything you edit you automatically watch
Linking between pages
To make links within the wiki, use wiki syntax with the square brackets, like this:
It's much simpler than embedding a whole URL