The simple answer is "yes" - but you have to do it the right way and even then it's not necessarily the best option.
Commercial activity, but only on certain parts of the site, ie, Facebook Pages (aka Fan Pages).
They don't want you doing it through your Personal Profile or through Groups. Links on other people's walls or in personal messages are likely to be disabled as spam, plus they get a poor response anyway.
The most successful FB marketers don't use direct linking anyway. The basic formula they follow is this.
2. Provide people with good content and links to good content to.
I) encourage people to join (the group) / become a fan (of that page).
The way to market people outside FB is to offer them an ethical bribe (eg Free Report or video) to get them to sign up to your autoresponder list.
Once they've signed up you can market them as often as you want without having to worry about FB.
Yes you can do it but remember to send the friend requests to the people who has commercial and professional approach.
You can. Though I wouldn't. Not only are people facebook more likely to ignore your links, but they are highly likely to block you and report you to fb, and they are extremely strict about their spam policies.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.