When I first started blogging, the best place to go for information when I had any questions or needed to learn something new was other bloggers. I had a great group of very supportive book bloggers who didn't mind my many, many questions. I would also use Google for information and would usually find what I needed in various forums.
If someone new to blogging were looking for a good source of information now, I would suggest visiting Parajunkee's Tips & Tricks. She has posted a lot of helpful, useful stuff, especially for newbies.
Every blogger needs a good editing program. Mine is GIMP. It's easy to use, does lots of cool stuff, and it's free. I also frequently visit dafont.com when I want to pretty up my posts. DeviantArt is also a good place to go if you want to find an artist to make something original for your blog. That's how we have the lovely header that you see here today =)
What are your best blogging resources?