MaxCDN is a commercial Content Delivery Network (a.k.a Content Distribution Network) used by highly trafficked web sites including @Mashable.

It costs roughly $40 per month to host one Terabyte of data (that comes out to 1000 gigabytes if you’re a tech noob). Take a look at the edge locations. Having a CDN with servers in these locations probably makes sense if you are looking to distribute content to people in North America. The extension will streamline your Magento content and deliver it redundantly from at least 10 edge servers. It may also preclude the need for you to find a custom caching solution, depending how your Magento commerce solution was designed.

They’ve already released the integration software for WordPress, but here is an announcement of what you should expect to see when you can integrate CDN by configuring a single plugin per Magento deployment. Remember that you can sometimes operate multiple stores under one Magento deployment.

Let me know if you are interested in custom designed cloudsourcing, performance testing, or optimization of your application for more elastic scale and geographic efficiency.

1. The first step is to get the post ID of the blog post you are viewing. You can get the id of a post by using $post->ID in WordPress. Let’s pretend it’s 3987.
2. You will also need to know the term ids for categories and tags associated with this blog post

Here is some PHP code you can use in wordpress to get the tags of your post ID.

 $tags = wp_get_post_tags( $post->ID );

Let’s assume the result is one category (264) and one tag (41).

1. If you are not using WordPress Mu, you can simply select from wp_term_relationships and wp_posts
2. If you are using WordPress Mu, you will need to specify the tables as wp_MU-BLOG-ID#_term_relationships and wp_MU-BLOG-ID#_posts. Let’s assume we are using WordPress Mu and our blog ID is 1. The tables we are working with are wp_1_term_relationships and wp_1_posts

SELECT p.ID, COUNT(tr.object_id) AS cnt
FROM wp_1_term_relationships AS tr, wp_1_posts AS p
WHERE tr.object_id = p.id
AND tr.term_taxonomy_id IN(264,41)
AND p.id!=3987
AND p.post_status='publish'
GROUP BY tr.object_id ORDER BY cnt DESC, p.post_date_gmt DESC LIMIT 5;

Notice that we have limited our results to the 5 most relevant posts. It is recommended that you limit this query because it can be a difficult query to process if you are running it on a blog that has thousands of posts. You can change LIMIT 5 to LIMIT 25 or so on blogs that are hosting less than 5,000 posts without seeing much of a difference in performance. On larger, more frequently updated blogs or WordPress MU sites which are hosting a lot of blogs on the same server, it is recommended that you cache the results of this query and only use it once an hour or once every time a blog entry has been updated.