I am not really sure if I understand you here but you can utilize our blog apps where it will automatically create a stream inside your easysocial site whenever user creating a new blog post on your site. You can find the apps from here, http://stackideas.com/apps .
Currently you can share the blog post via url pasting inside the story form and it will then populate the blog title, image and description inside the story form. Refer my screenshot example here, http://screencast.com/t/98CpenteVEGF .