Best RSS Reader Software for the Mac

I read a lot of blogs for my business for research such as marketing tips, product releases new, etc. I've always tried to figure out the best way to keep up with the multiple sites and either just browse the sites or use services such as Twitter or Email Newsletters
I've talked to PC users and many of them suggested using RSS Feeds and I recently got Pulse for both my iPad and iPhone and it's been wonderful. I like the design and how it works but the only problem is a limit of 20 feeds. This covers many of the feeds but not quite all that I want to subscribe to.
What is a good option for using on the Mac? For web browsing I use Firefox, Safari, and Chrome and for email Thunderbird. If I'm correct these offer options for RSS feeds. How do these compare to other feed readers for the Mac. Are web based/cloud versions better? I"ve heard of options such as Google Reader.

 

I'll take a look at that. I left this out of my original post but I like to share stories I read via RSS on Twitter and Facebook so integration for sharing with Twitter is important, same for Facebook.

 

I tried Socialite and liked it a lot but ended up trying Gruml. It seems it's only beta but is having a lot of updates and getting more stable. I've been happy with it so far.