1a. Contributors of own work: PI's, peer reviewed papers, opinions, also artwork, fiction, etc.
May be too busy or inappropriate for us to ask them to summarize
someone else's work.
2a. Contributors of work they find, minimal editing, might be willing to volunteer for assignments.
2b. Contributors, casual, may only suggest "new articles needed"
3a. Editors: those who summarize other's work, willing to volunteer for assignments.
3b. Editor / Cleanup: devoted folks who fix up exisiting pages, wording, grammar,
4a. Readers, devoted: those who come back repeatedly, or follow links to many pages,
they may appreciate a 'page of the week' notification
4b. Readers, casual: if they see a link on the web, they may become more interested.
4c. Readers, accidental, who stumble upon a page, and may or may not come back.