What makes a good blog

Well here goes my first try at blogging, i have lots to say i just don't know if it will be interesting enough for people to read, I'm sure people will at least glance before moving on, so the most important thing would be to have a catchy title, now that isn't as easy as i thought, what i think is catchy others may think cheesy, then it would need to be interesting enough to keep the readers reading along with being word clever, i don't think i have done either of them as yet, i really am a novice i don't even know how long a blog should be lol perhaps i should go read a few to get an idea. Ill be back