Online travel service TripIt has just added a new feature that will automatically import itinerary and travel confirmation plans from a user’s Gmail or Google Apps account to the service’s web and mobile apps.

TripIt links accounts using OAuth. All you have to do is login to your TripIt account and go to this page and enter in our Gmail or Google Apps e-mail address.

Once you grant permission to the service, confirmation e-mails from an airline, travel website or hotel will be automatically imported into your account. When you set-up the import link, you can choose to go back and grab older e-mails or just start fresh from today.

We think this is a great feature, especially for frequent travelers. TripIt is a really great service because all you have to do is forward your travel confirmation e-mail to TripIt and it automatically parses the information and makes it easy to view and access. Having a truly autonomous solution like auto-import from Gmail makes an already great system even better; it even lets you sync mulitple accounts if you have more than one Gmail or Google Apps address.

Pro Tip: Subscribe to your TripIt CalDAV feed in Google Calendar or iCal and you can have constant access to all of your upcoming trips in your favorite desktop or mobile calendar app.

Do you use TripIt or another service to manage your travel plans online? Let us know!

Today, Google is giving users even more tools for finding and understanding their web stats. The company has just announced they’re opening a full App Gallery for Google Analytics.

Currently, the gallery holds 32 applications, with more on the way. Developers can submit their apps online, of course.

Apps are available in 12 categories, including business intelligence, campaign management, content, data collection, e-commerce, email marketing, mobile marketing, phone tracking, reporting tools, SEO, site auditing and widgets and gadgets.

So far, we’ve seen a few interesting applications, such as Analytics Visualizations, which combines valuable data with easily grasped visuals, and the Analyticator for Wordpress, which integrates Google Analytics with any site built on WordPress.

Coming soon, we’ll also see a new set of Google Analytics reports for AdWords. Here’s a video sneak peek of those features: