Frustration

Well, I've been trying to trace down my father's side of the family and it's a pain it the butt on his father's side. I've gotten to the point where I want to bang my head against the table.
See, the way it goes, William Marron is the son of Peter Marron and Sarah Kennedy. I've traced to them, but it's a pain going back from there. Peter and Sarah are just too common a name in Ireland. I did find a lot of stuff on FamilySearch.org, but wish they'd have more on there. I also wish that freaking Ancestry.com didn't charge for everything. Man they have so much access and don't share crap.....ya ya ya, I know, how else would they make their money? Wish I could afford them, just can't right now. Oh well, I guess I'll have to be a little more patient with the FamilySearch people and with Footnote, which is ok, but same thing as Ancestry, they charge. At least they give sneak peeks though, which helps, but their database isn't nearly as extensive as Ancestry.
Unless, anyone willing to pay for Ancestry.com subscription for me? LOL
The other frustration is Bubba's mother's father's father's father's side....so his Great great Grandfather. He has a unique name first name, but a common last name and it's hard to trace his side down. Seems the census taker for his neighborhood didn't like to write first names of the parents down and it just frustrates the heck out of me. C. Johnson.....born in 1850 in Tennessee.....wow there's a boatload of them. So, another bang head on table experience there. LOL
ANYHOW, so that's where I'm at right now.
Anyone know of anyplace free I can look up family history stuff besides FamilySearch.org, Footnote.com, and Findagrave.com? Or you have information or photos to pass along to me so I can add them to my huge freaking tree I got going? Email me!