Remember to:

Check the following before you make your BLOG public:

Copyright - using material that belongs to someone else.
Every picture you put on your Blog needs to be yours. Don't publish pictures that you did not create or that were someonelse's and you added to in some way.

Issues of confidentiality - publishing material that may compromise someone.
You cannot publish anything that would reveal personal details about someone. Names, phone numbers, marital status etc.

Libel - writing anything that may 'defame' someone.
Don't write anything negative about someone who can be identified from your comments. Take off your comments for example, on other peopl's blogs.

To make your BLOG public go to -

-customise
-settings
-permissions
-Blog Readers
-tick on 'all readers'