Go to http://www.familysearch.orghttp://www.familysearch.org - up toward right hand corner find and click on Site Map.Scroll down, see Library, keep going to Family History Centers, click on Find Family History Centers.
Now, on main page where it shows a photo of a couple and is labled Search For Ancestors, click on that.In the search feature put as little as you can to begin with.For example I know quite a bit about my Isaac Standefer, but I only put in his name, nothing else.If someone puts him in with a middle initial, the system will say "No match"because I didn'thave the middle initial.You may have proof your information is absolutely correct, but wouldn't it be awful to miss someone who had one little error in a name, but had some old family photos they are willing to share?With more common names you begin to add just a little to narrow the numbers.Usually wife's first name, many people may not know her maiden name.See what I mean?
It is user friendly so other spellings of the surname come up, such as Standifer, Standiford etc.Now, there are several sources and if you try my Isaac you will see for IGI North America (International Genealogical Index) it will say over 24 matches, I need to click to see the "balance" of the matches. And, for Pedigree Resource File, again over 25 matches and I need to click and see the rest of the list.
By visiting an FHC they can explain the difference between Ancestral File and Pedigree Resource File - information submitted by other researchers.And the IGI, which was started as an index to the LDS Temple Submission records.Since then they have been adding marriage records all over this country, so it is like hugh marriage record index, too.You can limit your searches to just one of the sources, but it would be helpful if you knew the difference.Any and all sources are subject to errors, even legal records.My birth certificate says I'm a boy, it's been fixed, the certificate, not me.LOL
FamilySearch has links to many websites, but have stopped adding them as they were taking too much time to review each one to make sure they came up to standards and were not borderline porno, or sumpin'.
If you go back and click on Site Map, you will find many topics, click and read some of the Frequently Asked Questions, they may help you, too.
Do you have a public library near you with a genealogy collection?I found one lady I was helping lived just outside Dallas, and they have a very large genealogy collection and she didn't even know about it.Check with your local public library, they may know if there is one within driving distance to you.
Have you used GenWeb sites?If not, let me know and I'll give you some hints on them, too.