Whether you're a crafter, regular ol' family blogger, or whatever kind of blogger you are, there's always a few key blogs you should be following, whether it's for their tips or for your own exposure. Here are a few that I've found to be the most helpful in some of these situations.
If you want more exposure for your blog:
The Sits Girls
The Sits Girls are (and I quote from their website): a group of 40,000 women bloggers dedicated to supporting one another by leaving comments & learning about blogging. They feature a blogger every day, they share tons of amazing blogging tips, and their main goal is supporting bloggers and helping them gain exposure. I've found a lot of amazing bloggers through their daily featured blogger.

If you want to become a successful seller on Etsy:
Everything Etsy
Everything Etsy has more tips, tricks, tutorials and advice than you could ever ask for when it comes to Etsy. From packaging, to advertising, to creating your shop banner, to product photography, everything is here. When I first though about opening my Etsy shop, I got stuck on this website for hours reading articles. I may not have yet put to use a lot of the advice, but I still couldn't seem to get enough.

If you're a huge crafter / DIY fan:
Tip Junkie
Tip Junkie is a gold mine if you're into anything crafty. There are a million tutorials, featured projects, recipes, etc. Every Tuesday she hosts Tip Me Tuesday, where literally hundreds of people link up their projects and recipes.