enGin

If you're a Mac user, you'll definitely love enGin - a free Dashboard widget that provides a comprehensive internet search experience. With enGin, you can search for any information you need on the web, from Google to Wikipedia and Wolfram | Alpha. One of the astounding features of the widget is its ability to provide dynamic information such as weather in a specific city on a particular date, results of mathematical formulas, and comparisons between different entities.

What's more, enGin is easy to use and boasts excellent search speed, allowing you to quickly find what you're looking for on the web. The widget is also designed with a simple interface that makes it easy to navigate, even for first-time users. The inclusion of Wikipedia and Wolfram | Alpha links gives you a broader scope of search options, allowing you to access the most relevant information based on your query.

Overall, enGin is a fantastic widget that is useful for anyone who needs quick and easy access to a vast array of information on the internet. Its speed, ease of use, and diverse search options make it one of the best Dashboard widgets for Mac users out there.