I have always done inner linking before, always. However, the way I originally did it wasn't as strong as it could be.
What I used to do was set up SEO Ultimate so that EACH page/post would have links pointing towards it. This way that each time I put a keyword phrase into my web content it would automatically link to that page.
This is good, you need your inner linkings, however, I was making a major mistake. And the experts will probably see that before I even mention it.
My main mistake was that I was inner linking to each page and post. I am not going to say that this is a bad thing, because its not; each page should have pages linking to it. However, because I wasn't planning ahead for which pages/posts would link to which ones, I was not creating a solid support system for my main keyword pages.
So I went back and looked at my list of main keywords that I was targeting. These were of course the highest volume keywords for my niche. Now, I usually have a list of about 100 keywords; my main keywords and a bunch of lesser volume keywords. I then paired each main keyword with a list of keywords that were surrounding the same topic. Some had more some less, either way I managed to get a good list of supporting pages for each main keyword.
Now since I had already pre-done my deep linking with the deep link module in SEO Ultimate, I just went in and took out all the inner links for the support pages ( this is only temporary ). So, at this point only my high volume keywords had links pointing towards them.
I looked at my list of supporting pages, and went to each one that was already done up and did some rewording so that it was only linking to one of the main pages. I set the module so that it would only point to 2 pages max.
Anyways I finished it all up last night, and when I checked my rankings this morning some of the pages had jumped up several spots in the rankings, some several pages. And these were pages that only had 1 or 2 inner pages pointing to it at the moment. Some of these pages ONLY have the inner pages pointing to it, no outside links as of yet ( since I usually work on 1 keyword at a time ).
This goes to show you that deep linking on your website is a definite MUST!! And I am talking about above and beyond your navigation links.
For anyone NOT deep linking you had better get your a$$ in gear and get to it. And don't just randomly spread your inner linkings around, actually have a proper plan in place for each stage of your website.
Anyways, I figured I would share this with you guys, especially the ones starting out in SEO.