The following tools and resources are used to create, track and promote widgets and gadgets used to market websites.
Widgipedia Directory of widgets, a great resource for ideas. (TIP: backlink a widget using your terms/industry to see where they are installed as potential host sources)
Desktopify Create a desktop widget for Windows and Mac from your website content in two simple steps. Users can access your content from their desktop without opening a web browser. Gallery of widgets to get ideas, get statistics on installs/uninstalls. No charge.
FeedWind RSS feed widget adds dynamic content to any website. Add multiple RSS feeds from your favorite websites, news, YouTube and social networks, filter by keyword. Become a running news source for your industry. Three simple steps to create, great how-to section. no charge.
FormLoop Preformed widgets to download and use. Offers very simple converters and formula based widgets as well as customized options that come with or without branding. Four paid plans.
Get Site Control Add survey, contact, sign-up, promo, share, follow and chat widgets to a website to help increase conversions and encourage visitors to stay longer. Easy to use, has a gallery of widgets for ideas, mobile responsive, integrates with Google analytics, customize the widget to your site. One free plan plus three paid. ♥
QR-Coder Free and easy way to make QR codes for your website, no charge.
Widgetic Create a personalized widget by selecting a skin, add content, edit the details. Detailed analytics available for each widget, gallery available. One free plus two paid plans.
Yahoo! Pipes Composition tool to aggregate, manipulate and mashup content from around the Web. Powers widgets and badges, not for newbies. Good directions/how-to video. No charge but must have a Yahoo! account.
3. Will My Widget Link Building Be the Death of Me? (video/6:12)