Your internal links play an important role of your overall SEO strategy. In fact before you start to look for external links its good practice to work on your internal linking first. After all you control what's displayed and how to get visitors and bots from page to page. Here are 7 things you can do to improve your internal links
1. Focus on keyword relevant anchor text
You want to make sure the keyword or keyword phrases you're targeting are used as your anchor text (the text within the link). This way when the bots crawl your site they'll understand what the content is about which will help increase that particular pages ranking.
2. Fix broken or dead links
The search bots hate stumbling on broken or dead end links, they prefer to be able to move though a page quickly rather then be hampered down by these types of links. Broken links also have a tendency to really piss off your visitors especially if that link promises to reveal the information their looking for. Spend some time and check your links to make sure they work properly and point to the right pages on your site.
3. Use text menus
Search engine spiders still have a hard time crawling menus that don't have text such as flash or jave. This doesn't mean they can't or that there not getting better at it, but it does slow them down. Some browsers have difficulty displaying these types of menus properly as well, leaving people frustrated because they can't properly navigate your site.
4. Fast is good
Your page speed can have an affect on your page rank. What does it have to do with internal linking? A fast load time means links are displayed quicker, and people don't get ticked off because your site is taking forever to load and go away. Use Google Webmaster tools to monitor your sites load time and make changes if needed.
5. Create a site map
A well thought out site map lets both search engines and visitors know exactly what pages are on your site, what their about, and a quick means to get to them.
6. Don't go overboard with it
When creating links to your site external and internal you want to strike a balance. Too many links pointing out and your internal links get less link juice.
7. Use footer links
Having to scroll all the way back to the top of a page isn't user friendly, this is where footer links can really help. This is a good place to add additional navigation links or links to your social networks to encourage people to like, stumble, digg etc your site.