We are all a part of this network and also of others. We join networks to build our list of contacts and friends. Some people seem to have an easy time of it, others do not. Let's say you join a network and do everything right. You create a great profile page that tells others about you, you follow the TOS and yet you still can't seem to get anywhere. Then you need to look at what exactly it is you are contributing.
There are two types of contributions guaranteed to limit your success if that is all you are contributing. Ads and cut and paste article submissions. What you do and what you contribute gives the other members an impression of you good or bad.
If all you ever post are ads the impression you are giving other members is that you don't want a relationship with them. You are telling them by your actions that you don't see them as people but sales. There's nothing wrong with posting an ad or two when you balance it out with your own topic threads and comment on others threads. If you aren't doing that you are simply "spreading the spam". You are constantly pushing your products with no thought to the people you wish to engage. You may not be posting duplicate content or sending your annoying links to them through e-mail or private messages but you are spamming them none the less. You are constantly exposing them to programs they have no interest in, because they have no interest in you. You haven't given them a reason to be interested.
The second type of negative contribution is worse that the first because the impression you give is not spammer, but scammer. You may have reprint rights on those articles and it may be perfectly legal for you to use them and occasionally using one is fine. But when every submission you make is another cut and paste article, well there's more issues with that than with ads. First and foremost it's duplicate content there are hundreds if not thousands doing the exact same thing and the first impression it gives is that you are too lazy to write anything original. The second problem is that someone is going to recognize what you are doing and the word will be spread. The second impression people get when it's discovered is that you are out to con them. That's right, especially if you are claiming these articles as your own. You have given the impression that you are out to con the other members and that makes you less trustworthy than a used car salesman down at Lenny's Lemon Lot.
If you are going to be a part of a network you have to contribute quality content. You have to interact with others and you have to be yourself. Nobody will care that you aren't a Pulitzer Prize winning author. Nobody will care that you are not an expert on Everything under the sun. They will care that you have taken the time and effort to share yourself and they will be interested in you!