Finding adoption information online isn't the most difficult task in the world. There are plenty of websites out there, from ones that focus on legal advice to ones that tell the stories of folks who have adopted or are in the process of adoption, to state sponsored adoption information websites to, of course, orphanage websites.
So if you want adoption information, going online is the first and best place to look. However like just about everything else, it's not the last or most comprehensive place to look. Adoptions are serious and complex legal business, and it's extremely important to do your due diligence on all legal aspects less the process turn into a financial and emotional nightmare.
Of course, this wasn't the case half a century ago. Previous to say, the 1950s, adoption was a relatively straightforward process, in many cases akin to going to a store and picking out a pet. This is not to denegrate kids over the centuries who were adopted, but rather to show the lack of concern higher authorities had with making sure orphans were properly placed within loving, caring families rather than just pawned off on the first person who showed interest.
Often those showing interest were doing so for nefarious purposes. The great nineteenth century English author, Charles Dickens, made a career off of describing the plight of orphans and orphanages. Sometimes the villians were the people who ran the orphanage; sometimes the villains were the prospective adoptive parents. Always the dramatic tension was created by a system designed to use children as slave labor.
It's hard to imagine such a thing now, but it is in fact a part of the world's history. Children from around the globe have been used and abused since the dawn of time, and the changes and restrictions upon adoption in the western world over the past half century have been designed to curb that practice.
There is also much, much more concern for the birth mother now than there ever had been previously. Adoption information about how to protect the rights of both the birth father and mother, as well as the adoptive father and mother, are readily available on the web.
Once you have that information, then it's time to talk to an adoption lawyer. Once you do that, you'll be well on your way to adding a new member of the family.