Metro UI CSS a simple responsive css framework. Developed with the advice of Microsoft to build the user interface. It fits into many aspects of the modern web design like simplicity, grid-based interfaces (good for responsive layouts)!
Uploadify is a jQuery plugin for implementing single and multiple file uploads easier & better. Almost every aspect of Uploadify is fully customizable so you can create the uploader that suits your site perfectly. Versions are available in both Flash (Free) and HTML5 ($5 USD) for ultimate compatibility. Fallback methods allow for graceful degredation.
Do you know about Nicescroll 3? jQuery NiceScroll is a easy-to-use solution to have a custom scrollbars compatble with destkop, tablet and phone devices. It supports DIVs, IFrames, textarea, and document page (body) scrollbars. It works with all main browsers on mobile and desktop devices!
CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you’re a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you’re tired of ponderously large and thoroughly undocumented frameworks, then CodeIgniter might be a good fit.
Bootstrap is a popular grid-based, front-end development framework. It has now a new version with lots of exciting changes and features. V3 has a flat design which is the trend now. It follows the mobile-first approach and always responsive. Nearly everything has been redesigned and rebuilt to start from your handheld devices and scale up.
Easy Digital Downloads is a complete e-commerce solution for selling digital products in a light, performant, and easy to use plugin. The setup is almost simple; just define the products and payment details and the system is ready to go. This is a free WordPress plugin that simplifies selling digital stuff.
The Yet Another Amazon WordPress Plugin offers you a comprehensive import function that allows you to search for products from the AmazonPartnerNet and publish on your WordPress blog. Thanks to the possibility of the preview article, you must import any products arbitrarily, YAAWP already shows you all of the important facts at a glance.