SEO Smart links plugin is one of those plugins that almost every wordpress blogger uses for automatic interlinking. It has proven to increase the search engine rankings for many blogs. The automation of interlinking reduces the effort to link to each and every article and boosts the seo of the blog.
The author of this plugin Vladimir Prelovac, has developed a new premium version of the plugin especially for small and large business owners and bloggers.
There are a number of features that set it apart from it’s free version. To name a few:
Nofollow whitelist – Allows you to specify a whitelist of domains that you do not want to add ‘nofollow’ attribute to (for example for your own sites). It is a really good feature for bloggers who want to optimize multiple websites for search engines. Linking one website to the other will help increase the page rank as well as the search engine rankings
Advanced automatic interlinking options – SEO Smart Links is more powerful with new features like:
Option to prevent cross-category linking (autolink to articles within the same category only)
Option to parse only posts older than given number of days
Post slug keywords can be matched now
WordPress 3.0 custom taxonomies support
Option to specify the minimum length in characters for keyword to be considered
Disable WordPress texturization filter option
Caching: To interlink, a lot of resources are used to parse content. For large websites, it would mean excessive load on your site. To reduce the load, internal caching is used which is compatible with W3 Cache and WP Super Cache plugins.
Link Cloaking: One of the most useful feature for affiliate marketers. The affiliate links can be cloaked using a base permalink for redirection like /go/. It will help you increase the number of sales.
There are many more interesting features which can be checked out at their sales page.