You can easily setup front end posting system for your blogspot blog using Google Forms and blogger post by email option. Many of you don't know that Google Forms can be scripted to send you an email every time a response is submitted . You can edit the script to send you a title field as subject of email and message field as body of email.
If you provide your blogspot secret email id as "recipient" then all the responses will be automatically submitted to your blog . You have the option to directly publish them or just save then as draft .
Look up Google Spreadsheet to email and you will find the script .