Meetedgar.com is a Twitter and Facebook scheduling tool.
In a nutshell, you pre-write all your posts and put them in categories (blog posts, inspirational stuff, funny, promotional, etc.), then schedule what time of the day you want each post category to go out.
So instead of manually tweeting or posting on Facebook all day, you set this up ONE time and you're set for life.
I used to spend hours every week figuring out which posts I should send out for the day, but now everything is plugged into Edgar and I have much more free time to grow other areas of my music business.
This one costs $49/month for 10 accounts and $99 for 25 accounts, but if it's making you more money than you're spending... well you know the rest 😉