I started working on mine last year, and did a bit but then work got busy so it had to stop. I used a website to help, and got contacted by someone through that a week or so ago, who turned out to be my 4th cousin.
She's done lods of research, so my mother's side of the tree is now well researched, but to be honest, the girl who contacted me was nowhere near as excited as I was and now it all feels like an anti-climax.
Also there are skeletons in my closet I'd like to know about, but she didn't know about them having concentrated on my mum. (My dad was married before my mum with two children - I've never met these half-siblings, don't even know their names!!)
Might set you on that trail!!