Greets:
I've bene meaning to mention this for a while but I've had a small issue with Andrew's List All plugin from over at wpmudev.org and I'm now fixing it.
It's lists blogs marked as spam or deleted or mature. That's not a good thing.
Open up the list-all plugin (I've renamed mine so I can't remember what's it called) and head down to the bottom of the file. Yo should see a like like so:
$blog_list = $wpdb->get_results( "SELECT blog_id, last_updated FROM " . $wpdb->blogs. " WHERE public = '1' " . $order . " " . $limit . "", ARRAY_A );
See that "public = '1'"? Change it to the following:
public = '1' AND archived = '0' AND mature = '0' AND spam = '0' AND deleted ='0'
Last time I looked, all I had were spam blogs that I had marked on my home page. That's not a good thing.
Hope this helps,
-drmike