This version allows a user to define variables for the
number, and timespan, of units/lists to display.
For example, weblogs.com displays 3 1-hour lists; the example [below]
displays 3 10-minute lists.
Next up, some kind of hack to import a list of user-defined weblogs
to watch for and a filter to ignore all others. see also fetch-weblogUpdates (src)