Promoting online business through article marketing/blogs?

[Fabian]

Hey there

1) it definitely makes sense to put your article on different article sites, as you mentioned squidoo, wordpress, would also recommend hubpages, and of course the most famous article site ezinearticles. there are tons of other article sites, just google it.
All those pages give you good backlinks which makes your site showing up on search engines, and if they are written with good keywords it helps you to rank high... just be sure that you have unique articles, reword them before you publish them an other sites....

2) already answered with 1) I would go for different article sites, but as I mentioned, reword your articles to have them unique.

hope that helps