ilyar126

I think Feedwordpress is the best free auto blogging plugin available. Here is a good article with comparisons of auto blogging plugins

I think both of SEO Ultimate and Yoast SEO are pretty good. And lots of their features are more or less alike except few differences, such as Yoast has XML sitemap generator and some other pluses. I found this article on the comparison.

I think you definitely need SEO plugin to succeed in search visibility. Its best to study SEO beyond plugins though, I would recommend this book: SEO – An hour a day. This will give you a basic knowledge of what SEO is and how to position it strategically on your website.

another easy way to add source to your posts in Feedwordpress is to install Feedwordpress boiler plugin. You can find good tutorial here.

A much easier way to add source to feedwordpress post is to download additional add-in feedwordpress boiler and automatically set it to add source after each post.
Good tutorial on this is here.