Bitcoin Republic has a good name on it for a blog actually.
I would advise creating a Bitcoin for dummies specifically since that would attract a lot of newbies to read your other blogs from their curiosity, and I know you mentioned about the "tutorials", but I just want to emphasize that.
About the blog's other contents, don't focus a lot in speculation in price. I get bored reading a lot of headlines with "Bitcoin reaching $xxx?", only to find out it just contains generic information without any backing analysis on why that speculation was made. I would love to read about how it gets used entirely around your area/city/state. 
How you use Bitcoin, whether it is for its value or not, is quite a good content for a blog actually. I am curious about how people use their Bitcoin with just the limited adoption we got outside the internet.