What is the difference between Blog Articles and Newsletters

(By "foreign blogs" you mean those owned by other people, I think, rather than blogs in other languages?)

For me, these two are the same. When I write my articles, I publish them on my own site first and have them indexed there, and then I submit them unchanged to other sites, blogs, ezines, newsletters, magazines and whatever, in my niche, for re-publication, and last of all I put them in Ezine Articles in case anyone else wants to re-publish them from there (and people sometimes do).

I've written them all "with this plan", though. So when I write an article for my own blog/site, I already know that later it'll be widely published elsewhere. Like this: http://www.warriorforum.com/main-int...ml#post5035794

Mine are also slightly similar, in the sense that they contain some parts of those articles, too. But differently presented, and with some other, different, stuff as well, of course.

I don't actually call mine "newsletters" but that's more or less what they are: they're autoresponder emails sent out to people who have opted in, on my blogs/sites, because they wanted to receive them. (That's a newsletter, more or less, isn't it?)

Anyway, I re-use some of the same information again, in those.

It does mean that in theory someone will eventually, much later on, recognize that some information I'm sending them in an email is the same as whatever they originally read that brought them to my site in the first place, but that doesn't matter. If they're paying close enough attention to notice that, then they're probably good customers anyway.

I don't really use these. (Well, I do a little bit, just on my own sites, but they don't bring me sales on their own, of course. I'm an affiliate, so I can't make a living without promoting by email. The people who buy through one of my little ads/banners are people who've been sent to it by a link in an email).

I have very little experience with email solo ads (i.e. to other people's subscribers) but I know they can work well, for some people.

It's a very good underlying method which works well for very many people. Of course, "the devil is in the detail", as people say, and there's a lot more to it than that.

Here's are four posts/threads which might help/interest you ...

http://www.warriorforum.com/main-int...ml#post6123982

http://www.warriorforum.com/main-int...ml#post5300985

http://www.warriorforum.com/main-int...ml#post7642288

http://www.warriorforum.com/main-int...ml#post5068872

Sorry, but this is incorrect: nobody who understands how article directories work is trying to use them to generate backlinks - that would be both futile in the extreme and possibly even directly counterproductive.