Think about using RSS feeds from some of the popular blogs (sidebar is a nice place to use them). Keep visiting 100+ popular blogs/every day and choose some special tips from those blogs, post them on your own blog with adding something extra that can be useful for your visitors. Just don't make it a long story. People want quality contents. Visit ProBlogger and Performancing and learn all the ways to a "successful blogging". That's what I have in my stock right now.
Okay, I have an idea for you.... Create a blog about "LIES" The biggest lie in the world, the longest, the quickest, the shortest.... the most pathetic lies.... blah blah blah.... When it comes to "negative topics", it usually capture readers' attention, i.e. YouTube... or the bad version of YouTube, the pxxxxTube.
Thanks I'd love to write something about this, but I have no time for blogging, so... giving you this lovely idea to expand
This is like saying that you just opened up a store and are having a hard time thinking of things to sell. You should now what you want to write about before you ever start a blog if the goal is to make money from it. One big mistake that a lot of bloggers make when trying to start a blog and make money from is picking a hot topic just because they think that it is profitable without being an expert in the area, truly being interested in the area, or even having somthing interesting to say about the topic that isn't already being said by someone interesting with expertise.
think of something that you like enough to talk about and to read about. run with it. You really need to have some interest in a topic or else you will lose interest in your blog quickly.