All in one SEO allows you to add SEO optimization to every one of your posts and your entire blog. You can easily add meta tags to individual posts. This is an absolute must for a WordPress blog.
CFORMSII allows you to easily insert custom forms that are aesthetically appealing. There are many options and the CSS is customizable.
Although you may need to add some coding edits to your PHP file to use Gregs Threaded Comments, it is completely worth it. You can respond to comments left for a giveaway and not have your comment added to the counting numbers in the giveaway.
Google does not know all the content you have on your blog. You need to tell Google what is there. Google XML Sitemaps allows you to build a free sitemap of you blog and have it submitted to Google Webmaster tools. The Google XML Sitemap Generator allows you to create a sitemap to be submitted to Google.
Everyone should know I love CommentLuv. CommentLuv allows you to create deep links on blogs you leave comments on. You actually get something out of leaving comments.
I would not be able to do without the context widget. This widget allows you to specify what you have on your sidebars of different pages. If you want Adsense ads on only your front page or only on posts of a certain category. It is very easy to set up.
Easy Peasy Adsense allows you to specify where and which Adsence ads are used.
I recently was introduced to Reply Me. I had a horrible comment responder that sent a reply email to everyone who commented on my blog. That was bad. Reply Me only sends an email to those comments that have been responded to.
Yet Another Related Post Plugin creates deep links within all of your posts on your blog. When setting this plugin up you can choose different options to allow the plugin to choose different posts.
Another newer plugin that I feel you should have. RSS footer tags all your feeds with a link back to your blog. So if someone is scraping your blog for content and they don’t link back to you, the link will already be there inserted by the RSS Footer.
If you do not want to install any or all of these plugins yourself, I do offer installation of plugins. Visit designs by iDesigns for more information.