Must Use Plugins Akismet – best guard against comment spam for WordPress blog! Disqus Comment System - The Disqus comment system replaces your WordPress

comment system with your comments hosted and powered by Disqus.

Database and File Backup Plugins BackUpWordPress – BackUpWordPress will back up your entire site including your

database and all your files on a schedule that suits you.

Search Engine Optimization (SEO) WordPress SEO by Yoast – Yoast’s all in one SEO solution for your WordPress blog:

SEO titles, Meta descriptions, XML sitemaps, breadcrumbs & much more. Google XML Sitemaps – This plugin generates a XML-Sitemap compliant sitemap of

your WordPress blog. This format is supported by Ask.com, Google, YAHOO and MSN Search. The SEO plugins listed above can also do the sitemap for you.

All in One SEO Pack – Out-of-the-box SEO for your WordPress blog. Install the all in one seo pack or the “WordPress SEO by Yoast” plugin (you don’t need to install both).

Blog Statistics Related Google Analytics for WordPress – This plugin makes it simple to add Google

Analytics with extra search engines and automatic clickout and download tracking to your WordPress blog.

WordPress.com Stats – Tracks views, post/page views, referrers, and clicks. This plugin requires a WordPress.com API key to function.

 WordPress Popular Posts - WordPress Popular Posts is a highly customizable widget that displays the most popular posts on your blog.

WP-Polls – Adds an AJAX poll system to your WordPress blog. Allows you to easily include a poll into your WordPress’s blog post/page.

Caching Plugin W3 Total Cache – The fastest and most complete WordPress performance

optimization plugin. After you use the w3 total cache plugin you won’t go back to using WP Super Cache.

WP Super Cache – WP Super Cache is a static caching plugin for WordPress. It generates html files that are served directly by Apache without processing comparatively heavy PHP scripts. By using this plugin you will speed up your WordPress blog significantly.

Contact Forms Related Contact Form 7 – Contact Form 7 can manage multiple contact forms, plus you can

customize the form and the mail contents flexibly with simple markup. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering and so on.

Gravity Forms – Build and publish your WordPress forms in just minutes. No drudgery, just quick and easy form-building.

Social Networking Digg Digg – Your all in one share buttons plugin. Add a floating bar with share

buttons to your blog. Just like Mashable! Share This – This is a very useful plugin that allows your visitors to share a post/page

with others. Supports e-mail and posting to social bookmarking sites. Fat Free WordPress Social Share Buttons Plugin – This is a very simple and FAT

FREE share button plugin that adds Google plus one, Facebook and Twitter share buttons to your blog posts.

For Google Adsense Simple Google Adsense insertion – Easy to use WordPress plugin to insert Google

Adsense to your posts, pages and sidebar. Google Adsense Plugin – Google AdSense Plugin allows you to set parameters of the

ads displaying, such as format (text ad, image, text with an image or link), size, color of the elements in the ad block, rounded corners and the ad block position on the website.

Google Adsense – The AdSense Plugin enables you to easily use Google’s products – including Webmaster Tools – with your WordPress site.

Photo Gallery Plugin

Revslider : Slider Revolution is an all-purpose slide display solution that has highly customizable transitions, effects and custom animations

Simple Photo Gallery – If you are looking for an effective, reliable, yet simple to use photo gallery plugin, then check this gallery plugin out. I use it whenever I need a photo gallery plugin.

NextGen Gallery – The most popular WordPress gallery plugin and one of the most popular Plugins of all time.

E-commerce, PayPal Donation and Payment

Woocommerce - Woocommerce is a powerful, extendable ecommerce plugin that helps you sell anything. Beautifully.

WordPress Simple PayPal Shopping Cart – is a very easy to use plugin that allows you to sell products or services online in one click from your WordPress blog. Very useful when you want to sell eBooks or digital products from various posts and pages and need a WordPress Shopping Cart solution.

WP Easy PayPal Payment Accept – This is a very easy to use WordPress plugin to Accept donation or PayPal payment for a service or a product in one click. Handy when you are trying to put a customized payment widget on your site (you can add it to the sidebar or a page or a post of your blog).

WordPress eStore – This plugin provides a complete solution to sell products from your site. It is really good for selling digital products securely from your WordPress blog.

WordPress Donations Widget Plugin – The WordPress Donations Widget Plugin allows you to collect donation for a cause from your WordPress powered site.

PayPal for Digital Goods – This plugin allows you to use the PayPal for Digital Goods gateway to accept payment for digital goods. Provides inline checkout of digital goods.

Affiliate Related WP Affiliate Platform – WordPress plugin for affiliate recruitment, management and

tracking. This plugin lets you run your own affiliate campaign/program and allows you to reward (pay commission) your affiliates for referred sales.

WordPress Affiliate Link Manager – Allows you to automatically convert specific keywords from your blog posts and pages into your affiliate links. It also cloaks the affiliate links and gives it a prettier and shorter alias (good for affiliate marketers).