1993 when I started, found a large living family of half brothers and sisters in Canada, well into their 80's then three carried on until their mid 90's..made me so welcome when we visited, internet sites good , Family History Centres will give you a lot of help . Family Tree monthly magazines worth their weight , there are several around. I will try and post some of the sites I've been on.
Having found my family in Canada, have got back to 1720 in Gloucester and stuck . This year found an English cousin I knew nothing about and visited him, having found my relations my husband felt a bit left out, he was fostered at 6 weeks old and adopted at age 7 , when contact with his birth mother ceased, so we decided to try and see what we could find out about her and her family. We found her aged 92, and knew we must tread very, very carefully and respect her wishes re any contact.
We met her, took her out for lunch but as her family knew nothing about my husband she didn't want to continue, my husband has some photos of her and him together so is happy that he was able to make contact and know his true family background. We were given the ok to send her a birthday card and Christmas card just from us with our ph no and when she died someone rang to say she had died, and from there we met her younger sister who lived to be 98 and was fascinated by my husbands background, we went to the 98 year olds funeral at the invitation of her daughter who knew the background and it was strange seeing all these cousins etc who were real relations to my husband.
I will look some sites for you to look at.