Hi all. Basically what I am trying to do is have three separate blogs on the same overall site, which users will be have access to upon a single registration.
First blog: Some users will be allowed to author posts on 1 blog (any user can comment)
Second blog: Only the admin will be allowed to author on the second (any user can comment)
I think this means I'll need to have both blogs utilizing the same database, but I'm not sure if that's possible.
Thanks for help.
What you want to do is share the users database table, but use different table prefixes for 2 of the 3 blogs. So I'd recommend using the default table prefixes for one install and custom prefixes for the others.
To change the tables' prefix, change the $table_prefix variable found in your wp-config.php file. Underneath that, for the two installs for which you're changing the prefix, define the custom users table so that it points to the shared users table:
define('CUSTOM_USER_TABLE', 'wp_users');
Ah, it's that simple! Thank you very much.