With hyperlinks, adding a TITLE attribute, like you would a TARGET, will cause the text to be displayed when the mouse hovers over in a "ready to Click" position. Hold your cursor over the SEO link a second,
SEO. Now it says more than the visible text does, especially for ease of access browsers. Could have said more, but it was just to label the link plus now there's an extra key word plug that looks like this in the code:
ALT text is the same except, if you use images as links, this is the chance to tell a user what is behind that click or why that image will reveal the truth they seek... ok, wordy. Basic rule, don't spam these tags, keep the ratio down if you can, if you don't use a ton of images, then it's not an issue. For this page, the above link has one prime keyword, the image will also, but with a little extra description.

And that's about that. Of course, technically speaking, this page is now borderline spam, at least there were only a couple same site links this time.