Many modern blog platforms (most of them actually) let you publish data by email. You can just send email to some service address and platform transforms it into a new post. For example, in Posterous you can send data to post@your_blog.posterours.com, in Friendfeed it is email@example.com, in Blogger you can set address in Settings->Email&Mobile tab, Facebook can update status by email too (see http://www.facebook.com/mobile/) etc.
This application lets you create a personalized mobile web application for posting geo related data to your blog. Just set a service email address in the form below and get a link to the personalized mobile web application for your iPhone, Android or Samsung phone (actually - any phone with HTML5 mobile browser). This web application lets you email new postings right from the map - just click on the draggable marker presents the location. And application automatically adds to email a link to the location. So your posts will have a direct link to some map. It is probably the easiest way for sharing locations, write about some check-ins, lets your readers to see the place you are writing about etc.
Optionally, you can predefine also phone number to share your location info via SMS. Actually with this mashup you can create also an emergency contact tool - email (SMS) your location with one click.
This mashup follows to ideas of Geo Messages approach. You can get more information about the background here.