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What is a plugin?

Add amazing new features and capabilities to your blog with plugins


Plugins are a “MUST HAVE” for bloggers, but come with a warning too!

Here’s what WordPress (the website creation software that runs your blog) says about plugins:


Simply put, plugins are a small software program that literally plugs into the back end of your blog, enabling a number of things to happen. It could help you add an element to your sidebar like a video, install social media sharing buttons on your blog posts, allow you to add forms to your landing pages, help you reduce spam comments, increase the speed of how your blog pages load, etc. There are thousands and thousands of developers that are creating and constantly updating plugins for blogs everyday.

Plugins enable things to happen mysteriously in the back end of your blog, as well as adding visual elements that the blog reader can see, like videos, buttons, forms, Facebook activity feeds, links, ads, etc.


The things that you see visually on your blog outside of the regular content that you create, are often plugin-enabled via a widget. WIDGETS create blocks of space that are holders for extended content like mentioned above. The most popular widget-enabled areas of your blog are the sidebar and footer. But you can have widgets in the header or within blog posts and pages as well.

Plugins are an essential part of the blogging opportunity and reader experience, as designed by WordPress. We have included the best of the best plugins already on your site within a repository of over 200+ of the most valuable small business plugins to help you operate your blog. We review and maintain these plugins on a daily basis, on your behalf!

WARNING: Every time you activate a plugin on your blog, you are introducing a new piece of code that was written by a third party developer, that may or may not be good at what they do! They also cannot ever write their plugin’s code with a full understanding of the total mix of other code/plugins you have on your site or recent updates to the WordPress core.

This type of environment is ripe for code conflicts. This means that something that is already working on your site may simply stop working. You may notice this right away after activating a plugin, or not, since you have no idea what effects the new plugin may or may not have.

After adding new plugins, we have seen home pages go black, automated email notifications stop working, key theme features go away and so much more. This is not meant to scare you away from plugins, but you need to know that it is important to proceed with caution!

Try not to add more than one plugin at a time and then give it a little time to see if there were any adverse and unexpected repercussions. If there are adverse side effects, then simply deactivate that plugin and let us know!

Remember, plugins are an extremely important part of your blog’s performance and look and content offerings. Just remember to proceed cautiously. Overall, add the fewest plugins possible to do the job well!

It is because of these issues that we closely monitor and update any plugins that are allowed on PSMU blogs. Please READ MORE about how to add plugins to your blog and the advantages of our plugin monitoring and update services.