Don't have flashy wallpaper and excessive graphics as this will distract readers for the information you want to impart. It's easy to create webpage now as there are many templates and software available on the internet. Collect as much information however trivial it may be. That small bit of information maybe relevant in time. Always keep a note book in your person so that your never caught out.
People say things at strange moments.
Remember to be a good listener you never know what you might here. After you have made initial steps the next step is research. Your nearest Library will have archives that include Census records, Historical Magazines, Newspapers on microfiche. Births deaths and marriages offices is another place of research. The Church of the Later Day Saints or LDS may have a Family History Centre near you.