Best free plugins available

Question

Hello, can you put here the best free plugins that you find good for Q&A sites, because the ones that are available and still working are not put together in one place.

Note: we can create another question later for paid plugins.

Answer 1

These are the ones I'm using so far:

• Registration Blocker
• Markdown Editor
• Advanced Tag Descriptions
• Tagging Tools
• Badges
• On-Site Notifications
• History
• Edit History
• Flag Reasons
• No Self-Accept Points (a small plugin to prevent awarding points for accepting a self-answer; probably irrelevant to anyone who doesn't want an SO-like reputation model)

Comments

Thank you very much for your great post

Answer 2

This is a set of plugins that I find good in addition to what was mentioned:

• Book v0.8 
• Custom 404 Page v1.2 
• Embed v1.7 
• Facebook Like Box v1.2.1
• Faq Page v0.4 
• Featured Questions v1 
• Online User Count with Bangla Language v2.0 
• Q2A Breadcrumbs v1.5.3
• Q2A Ultimate Widgets v1.0 
• Question2Answer Use CDN v1.0 
• Widget Anywhere v1.4.1 
• User Manager v1.2 

Answer 3

Registration Blocker is a great plugin, as it hides the registration form in order to discourage spam and prevent automated scripts from signing up. It does so by adding a CAPTCHA before any form field can be filled out on the registration page. You can configure Registration Blocker's settings according to your needs, such as changing the length of test or turning off sound confirmation for each inputted answer. I would advise you to have this installed if you are running a Q&A site with many open registrations.

Comments

Registration Blocker
where the plugin of it