Spongecell ads give consumers tools to interact with your brand and easily move your message out of banners and into their lives. Iterate quickly and measure every last interaction.
Mosuki is for sharing events, photos and more with the different kinds of people in your life. Find cool things to do with your friends and plan family gatherings.
Slow, featureless online calendars are so Web 1.0. Kiko Calendar provides all of the functionality of offline calendar software, and all the convenience of online access. Plus, it's free!
Use Zvents to find and post events, concerts, festivals, live music, and other things to do near you. Zvents is a free search engine where you can search for what to do by location, time, or event type.
30 Boxes is almost certainly the easiest way to share your calendar and your web stuff online. Organize your schedule, share all or parts of it with friends. _Post it to your blog. Track your friends online including their Webshots, Flickr...