SELECT COUNT(el_from) AS total, el_from, page_title
FROM externallinks, page
WHERE externallinks.el_from = page_id AND page_is_redirect = 0 AND page_namespace = 0
GROUP BY el_from
ORDER BY total DESC;
SELECT COUNT(el_to) AS total, SUBSTRING_INDEX(el_to, '/', 3) AS search
FROM externallinks, page
WHERE page_id = el_from AND page_namespace = 0
GROUP BY search
ORDER BY total DESC;
Additional information
Some more information about this dump:
187 articles that are in the main space and not redirects
204 articles and redirects in the main space
920 pages in all namespaces
26 redirects in all namespaces
2480 external links in every namespace
120 external links in the main space
Very probable spambot pages
If index.php is found in a page title, it is very likely the article talk page has been created by a spambot. These pages should be deleted and protected if possible.
SELECT page_id, page_title, page_namespace
FROM page
WHERE page_title LIKE '%index.php%' OR page_title LIKE '%/wiki/%' OR page_title LIKE '%/w/%' OR page_title LIKE '%/';