I've been participating in the Ultimate Blog Party since 2007. There are many bloggers that I continue to follow that I was first introduced through UBP.
It's really simple to join in the fun! Just write a party post on your site, sharing a bit of what you and what your site and then add the URL of that party post to 5 Minutes for Mom's linky list so that others can find you and “meet” you and your blog.
The blog world will be party hopping - meeting new friends and partying blogger-style at the Ultimate Blog Party 2013, at 5 Minutes for Mom.