Thanks Mark,
Looks like that might be the ticket, but I don’t know how to go about using it dynamically.
For example, here’s the embedded template for blog entries (with username=”” hard-coded in):
{exp:channel:entries channel="blog" limit="8" dynamic="off" username="John Smith"}
<article class="blog-entry">
<h3>{title}</h3>
<p><date>Posted on {entry_date format="%d %M %Y"}</date></p>
<p>{body}</p>
<p></article></p>
<p>{/exp:channel:entries}
That seems to work okay for that one user. It’s being pulled into the main template (“profile”) with:
{embed="channels/blog" dynamic="off"}
There’s a nav menu (populated by it’s own channel) with links to each blogger’s “profile” page:
{exp:channel:entries channel="bloggers" dynamic="off"}
<div><a href="http://{title_permalink=">{title}</a></div>
{/exp:channel:entries}
I guess the Username parameter would need to be used dynamically in one of those bits of code somewhere?