PART 3 ...
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.
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).
Yet Another Related Posts Plugin – This plugin gives you a list of posts and/or pages related to the current entry, introducing the reader to other relevant content on your site.
Download Monitor – This plugin is very useful for managing and tracking your digital file downloads. You can track which file is being downloaded how many times and who is downloading them.
Simple Tags – This is one of my favorite plugins. It makes my WordPress Tagging life so much easier. It helps with Auto completion, Suggested Tags, Tag Cloud Widgets, Related Posts, Mass edit tags.
Crayon Syntax Highlighter – A plugin to highlight any code in your posts or pages. very handy if you use example codes in your Blog.
Mailpoet Newsletters – Send newsletters, post notifications or autoresponders from WordPress easily, and beautifully.
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.
EWWW Image Optimizer – The EWWW Image Optimizer is a WordPress plugin that will automatically and losslessly optimize your images as you upload them to your blog.
WP Video Lightbox – The WordPress Video Lightbox plugin allows you to embed videos on a page using lightbox overlay display. This plugin can be used to display images, flash, YouTube, Vimeo, iFrame etc in a nice lightbox overlay.