WordPress Call To Action Plugin
You want to add subscribers, gather emails, promote a product? I have a tool for you. Its completely customizable to fit the look of your website, and it can do pretty much whatever you want it to. The thing I love is you can set up multiple templates and then choose what template you want on each post. This stops you from hitting your visitors with the same message over, and over, and over. You can mix it up, and yet still keeping things one click away. Best of all, as I write this, the Call To Action WordPress Plugin is only $27. There is a six minute video that shows how customizable, and some great examples.
SD Slide Deck
I'm not sure how I found out about the SD Slide Deck, but if you are looking to add a cool visual aspect to your website, this may be the tool. SlideDeck rocks for sharing ideas, explaining how something works or helping a user through a decision tree. It create SEO Friendly websites with the ability to customize through CSS. This is a free plugin for wordpress, or you can purchase the full version for $99. The free version is pretty powerful on its own. You can even feed the deck with an RSS feed, choose which way the deck slides and more. I could see web designers using this for their portfolio page. Its been used by sites such as crazy egg, TED talks, and more. There are even free skins available. This works with and without WordPress. For more information go to slidedeck.com