DeBAAT

A Service Oriented Architecture is primarily based on the definition and co-operation of services. One of the main benefits is claimed to be the re-use of existing functionality. However, due to the complexity of the environment, the insight of available functionality is often lacking. In new projects, new functionality is thus build completely new with new services. Even when there is already an existing service performing the same task.
This plugin provides a means to manage and visualise the existing service base. With the use of shortcodes, the network of service relations can be visualised. As the relations can change over time, the visualisation is dynamically generated every time it is shown on the site.
Download a set of example entities via [https://www.soavis.eu/wp-soavis-sample-upload]. This page also shows how to upload that set.
The main visualisation is provided by <a href="http://www.graphviz.org/" rel="nofollow ugc">GraphViz</a>, a powerful tool for visualising network and tree structures that connect objects. It has been implemented in the <a href="https://wordpress.org/plugins/wp-graphviz/" rel="ugc">WP GraphViz</a> plugin. Hence the dependency check.

WP SoaVis

A plugin to provide a SOA visualization for WordPress sites.

Automattic

Donncha O Caoimh (a11n)

This plugin adds a stylesheet or image to your blog’s html source code. When a browser loads that stylesheet or image a cookie is dropped. If that user then leaves a comment the cookie is checked. If it doesn’t exist the comment is marked as spam. 
The plugin can also check how long it took a user to enter a comment. If it’s too fast it’s probably a spam bot. How fast can a legitimate user enter their name, email, web address and enter a well thought out comment?
For the adventurous, add these lines to your .htaccess and it will block spam attempts before they ever get to WordPress. Replace the Xs with the cookie that was set in your browser after viewing your blog. You can also find the cookie value by examining the page source code and looking for “css.php?k=XXXXXXXXXXXXXXXXXXX”. Make sure the lines go above the standard WordPress rules.
<pre><code> RewriteCond %{HTTP_COOKIE} !^.*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.*$
 RewriteRule ^wp-comments-post.php - [F,L]
</code></pre>
If you use WordPress MU, replace wp-comments-post.php above with wp-signup.php to block spam signups.
<pre><code> RewriteCond %{HTTP_COOKIE} !^.*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.*$
 RewriteRule ^wp-signup.php - [F,L]
</code></pre>

Cookies for Comments

If you don't use any other spam filter plugins, then you can rely on this to stop spam comments for sure!

Must have, if you don't use any other spam filters!

I'd been getting a dozen spams a day on two of my sites. We installed "Stop Spam Comments" on one and "Cookies for Comments" on the other. Both worked perfectly. No more spam. Thanks!



very easy and no more spam!

Sets a cookie on a random URL that is then checked when a comment is posted. If the cookie is missing the comment is marked as spam.

WP SoaVis vs Cookies for Comments