There are a ton of these lists out there, but for my money making blog, these are the five wordpress plugins I would not want to do without!
1) CommentLuv – Plugin to show a link to the last post from the commenters blog by parsing the feed at their given URL when they leave a comment. Rewards your readers and encourage more comments.
2) Dofollow – Disables the rel=nofollow attribute in comments.
3) Google XML Sitemaps – This plugin will generate a sitemaps.org compatible sitemap of your WordPress blog which is supported by Ask.com, Google, Bing, and YAHOO.
4) WP to Twitter - Updates Twitter when you create a new blog post or add to your blogroll using Cli.gs. With a Cli.gs API key, creates a clig in your Cli.gs account with the name of your post as the title.
5) FeedBurner FeedSmith – Originally authored by Steve Smith, this plugin detects all ways to access your original WordPress feeds and redirects them to your FeedBurner feed so you can track every possible subscriber.
