Web training site Grovo has quickly become one of the best ways to learn about new services on the Internet. It offers video lessons on web apps and services, and today it’s adding a slew of new features, including collaborative learning, better personalization, and other upgrades.

When it launched about a year ago, Grovo offered short video lessons that added up to courses around 15 to 20 minutes long. Since then the company has added many more courses, a nifty redesign, and has gone freemium — offering some lessons for free, and others for a small subscription fee. This latest batch of features will make Grovo an even more compelling option for those wishing to learn about the web.

You can now create groups to learn alongside your friends, family, and co-workers. Groups can be public, which means anyone can join, or private, which could make Grovo a great way to get your parents or technophobe co-workers up to speed on the latest web technologies. The groups feature will make Grovo an even more useful tool for businesses aiming to train their employees.

Grovo is also adding “Tracks” today, an intelligent collection of lessons that help you learn about something specific. For example, the “Creating a blog” track asks you specific questions about your experience and what you hope to accomplish. It then provides you with the most relevant lessons. Tracks makes Grovo more welcoming to users who don’t quite know what they should learn next.

The company has also upgraded its video player experience. You can now add tips, tricks, and questions at specific points during videos, which will pop up for others when they watch that lesson. There are also closed captioning options now, and you can listen to videos with just narration (which blocks out background music).

Grovo is also more offline friendly, thanks to a new downloadable cheat sheet that holds relevant content for every lesson.

Co-founder and CEO Jeff Fernandez tells me that the company has seen diverse growth, with paying customers in six continents. Large Fortune 100 enterprises have also adopted the service for their employees, including Pitney Bowes. Grovo will continue to add even more Tracks in the future, like an online shopping Track in December, and a health and fitness Track in January.

As I’ve written previously, Grovo will certainly appeal to users who’ve always wanted to learn more about certain sites or services but don’t want to bother their geeky friends. The site’s videos are clear, informative, and professionally made. As somebody who used to train users of all sorts of skill levels, I can attest that there’s something for everybody on Grovo, and the site will surely add more lessons over time. It’s also worth noting that using Grovo is a lot less demoralizing than owning one of the Dummies series of how-to computing books.

The New York City-based site was founded in 2010 and is privately funded.