If your WordPress category page links stop working, it may be due to the WordPress SEO plugin’s “strip the category base” feature. Here’s a workaround.
WordPress plugin
Disable “Around The Web” Disqus Links On Your Blog
For blog’s using the Disqus commenting system, you may see some article links to other websites below the Disqus comments section, with the heading “Around The Web”. Here is how to disable “Around The Web” Disqus links to external website articles.
Redirection WordPress Plugin Fix: Export Redirects List To CSV, XML, Apache, RSS
Redirection, a WordPress plugin, manages URL address redirections for your WordPress blog. Exporting your redirects list (CSV, XML, Apache, RSS) may not work for some users. A solution is given here.
Remove Extra Characters Appearing At The End Of Your WordPress Blog URL
If you use AddThis for your sharing buttons on your WordPress blog, you may have seen unwanted extra characters at the end of your blog or post URL. Remove these by editing AddThis code or by changing AddThis plugin settings.
Fix For Windows Live Writer: Temporary Post Used For Theme Detection
In Windows Live Writer, the desktop blog writing program, WordPress users may see a theme detection error. When updating the offline blog theme, a temporary post shows up in your blog’s RSS feed. A solution is here.