I’ve been an avid fan of Evernote since before it launched, and its extensive marketplace has really fleshed out its potential for bookmarking for a cause.  But its up-and-coming rival Springpad is coming out with some very action-oriented features that have long piqued my interest, enabling you to do more with your bookmarked items, instead of shelving them, or merely sharing them with others.

Today, Springpad’s rolling out with a handful of upgrades, imprvoing email-in capabilities for links from web pages to read later, or even tasks.  What’s even more exciting for me is the RSS and iCal feeds integration, which really helps to personalize the automated syndication of your bookmarks and saved items.  Send content to read on Flipboard, re-route alerts and offers to your preferred reader, publish a public feed to your personal blog, or update an iCal group schedule.

This last round of feature upgrades expand on the data in-out goals Springpad discussed earlier, shaping the social and individualized methods of content sharing and actions.  What to do with all this web content is a very personal matter, and Springpad’s new provisions extend its users ability to better incorporate it with the services (email, calendar & RSS) they already use on a regular basis.

“In the last three months, more than 10 million notes, bookmarks, recipes, products and places have been saved into Springpad – and with the launch of the improved Email-In feature, RSS and iCAL support and our API, we’re thrilled to give our users even more ways to easily organize and get information in and out of Springpad,” said Jeff Janer, co-founder and CEO of Springpad. “The features we’re releasing, along with the categorization, quicklinks and alerts we automatically add to what our users save, all contribute to helping people simplify their busy lives.”

Looking into the future personalization of Springpad, the company’s also releasing its API today.  Offering full read/write access to the Springpad platform, developers will be able to impart their own ideas on what can be done with bookmarked, social (or private) content.  In private beta, the API will drive innovation, and I’m quite anxious to see what developers come up with.

“With our rich set of structured data and enhanced information, we’re excited to see what developers will do to further enhance the experience for the Springpad community,” says Jeff Chow, co-founder and Chief of Product at Springpad.  “For existing applications, the API gives developers ways to save data into Springpad and ways to tap into the notes, bookmarks, products, recipes and places that users have already saved to enhance and personalize their applications, including recommendation services, deal and coupon sites and more.”