`_b.blogID` is a string that contains the blog's ID. This string is also used as a default for other _b methods. The value of `_b.blogID` can also be changed with the `_b.defaults()` method which will not only improve performance but will also provide a more secure blog ID to be used as a default in other _b methods. In the example below when `alertID()` is called there will be an alert of the blog ID string [html] <script type='text/javascript'> function alertID(){ alert(_b.blogID); } </script> [/html] In the code below the blog ID is predefined so will be used as a default in all _b methods. [html] <script type='text/javascript'> window.onload=function(){ _b.defaults({ blogID:"8369227433074681144" }); } </script> [/html]