Basically, the word on the streets is that getting links from blogs is less effective than it used to. This may be true amongst the uber bloggers, but I think it’s still very effective lower down the food chain. And lets face it, if you produce information that is going to solve peoples problems you are going to be popular and get links.
The more narrow the blogs focus the more obvious that it can solve specific problems and so attract a niche audience. The problem with most blogs is they are not narrow enough. If there are not enough bloggers in your niche, attract those who are not. Go sideways, think lateral.