It is time we go through our monthly roundup of the most popular jQuery plugins of March 2012, you will definitely want to try these.

1. mailcheck.js

Suggests the right domain when your users misspell it in an email address. It has reduced email bounces for signup confirmation by 50% at Kicksend.com.

2. Timeline

Beautifully crafted timelines that are easy, and intuitive to use. It is also great for pulling in media from different sources. It has built in support for pulling in Tweets and media from Twitter, YouTube, Flickr, Vimeo, Google Maps and SoundCloud.

3. Hammer.js

A JavaScript library for multi-touch gestures.

4. Parallax Content Slider

A simple parallax slider with different CSS3 animations for each slider element and a background parallax effect.

5. TypeButter

TypeButter allows you to set optical kerning for any font on your website. If you’re longing for beautifully laid out text that today’s browsers just don’t provide, this is the plugin for you!

6. Adipoli

A simple plugin used to bring stylish image hover effects.

7. Credit Card Validator

Detects and validates credit card numbers. It’ll tell you the detected credit card type and whether the number length and Luhn checksum are valid for the type of card.

8. Camera

A slideshow plugin with lovely transition effects and works very well with responsive layouts.

9. TOC

A plugin that will automatically generate a table of contents for your page.

10. Sweet Tooltip

A CSS3-based tooltip, not merely a one-style tooltip but seven.  It is a style-independent tooltip, so, for future usage you can create a suitable style tooltip with the project you’re working on.

11. iPicture

A plugin to create interactive pictures with extra descriptions.

12. filtrify

An advanced tag filtering plugin, you can search tags within tags and filter items by multiple tags from different categories and get a live feedback on the number of items containing related tags.

13. wPaint

A little paint plugin that allows you to draw an image using some basic tools providing ability to load and save the images drawn. It is based on HTML5 canvas and will require a browser with support for that.

14. jQuery Retina

Images that aren’t retina optimized look blown up and fuzzy on retina devices. Therefore, this plugin is created to swap out the image source for an image that is sized for retina displays.

15. jqFloat.js

A plugin that able to make any HTML objects appear to be “floating” on your web page.

16. releasenotes.js

Writing release notes is painful! So, this plugin takes the hard work out and connects directly with your GitHub repository and mashes up some release notes for you using your milestones, issues and comments.

17. autoComplete.js

AutoComplete is a jQuery Mobile plugin which allows developers to add autoComplete search boxes to your project.

18. Intelligist

This plugin makes it easy to share and demo code in-page, using GitHub gists.