Check out BLURdigital a new website "designed to provide a common ground for people of mixed heritage to find and share relevant lifestyle-focused content, identify and highlight useful resources and share their personal stories and experiences with one another through our social networking tools." It's a great looking site and I think it will be a fantastic resource for people living the Mixed experience--like Facebook and ThisNext mixed together. (Thanks to Louis Gong at Mavin for the info!)
Then check out this new-to-me blog No More Race focused on the multiracial and multicultural experience of a father. Hooray! We want more men in on this conversation--I think you'll enjoy his thoughtful posts.