Akismet - to fight comment spam. Google Sitemaps - if you post often and have more than just a few pages All-in-one-SEO - to optimize you blog for search engines The rest depends on your needs Here is the official WordPress plugin repository - 2,280 plugins Many plugins in this repository have screenshots.
For me, list building is essential. FasterIM Opt-in plug-in - Let you build your own list within 5 minutes. Download free from xxxxx. (Can't post link but you can googling for it) Cheers!
Some features of All in one Seo plugin's are * Automatically optimizes your titles for search engines * Generates META tags automatically * Avoids the typical duplicate content found on Wordpress blogs * For Wordpress 2.3 you don't even have to look at the options, it works out-of-the-box. Just install. * You can override any title and set any META description and any META keywords you want. * You can fine-tune everything * Backward-Compatibility with many other plugins, like Auto Meta, Ultimate Tag Warrior and others. DON.