freedimensional

The most common ways for people to subscribe to a blog and its content are through RSS, Email and Twitter. Some people syndicate to Facebook too. This plugin places related subscription icons in a widget area and lets users enter their own feed or page URLs and select the colour of their icons. Its really simple but theres lots of power under the hood.
<h4>Features:</h4>
<ul>
<li>Offers an attractive range of subscription options for your readers using familiar-looking icons.</li>
<li>Intuitive interface for editing options, including your feed or page URLs, widget title and icon sizes.</li>
<li>Independent handling across multiple widget instances, using WordPress 2.8’s widget_class coolness.</li>
<li>Ability to select any colour, via HEX code or <a href="http://www.w3schools.com/html/html_colornames.asp" rel="nofollow ugc">HTML Color Name</a>.</li>
<li>Integration with the <a href="http://digitalcortex.net/plugins/subscription-options/addon-pack" rel="nofollow ugc">Subscription Options Add-on Pack</a>.</li>
</ul>

Subscription Options

Adds subscription option icons for your RSS Feed; your FeedBurner Email Service; your Twitter Stream and your Facebook page. Totally user-defined.

Tran Ngoc Tuan Anh

eLightUp

The Inspector plugin is a tool for developers, which allows us to see hidden information for debugging. The information includes option value, post meta value, <a href="http://www.deluxeblogtips.com/2012/01/get-admin-screen-information.html" rel="nofollow ugc">current admin screen information</a>, current user information, admin menu items and registered scripts and styles.
Features
<ul>
<li>View/Delete option via Ajax</li>
<li>View/Delete post meta via Ajax</li>
<li>Autocomplte option & post meta name</li>
<li>View current admin screen information</li>
<li>View curren user information</li>
<li>View admin menu items</li>
<li>View registered scripts and styles</li>
</ul>

Inspector

Inpect hidden information of your WordPress websites for debugging

Subscription Options vs Inspector