Replace 98 Blazer starter solenoid?

I'm thinking I have a bad starter solenoid in my 98 blazer. Good battery, even tried to jump it just in case. When I turn the key there is a solid click noise but nothing else. Good power, radio works, lights work etc. I had the same issue on a riding mower and it ended up being the starter solenoid on that. Granted, it was much easier I presume to change it out on the mower. I haven't the slightest idea of what I would be getting myself into with the car. Can anyone give me a how-to on getting to and changing the starter solenoid on a 98 Blazer for someone who doesn't know technical terms? I'd rather not pay someone to do it for me if I can do it myself, I just don't know how or what to start with. Thanks!