You can create as many links at the bottom sections of your sites homepages as you like but it can be recommended using the main pages for the addresses of the links to point at. This way, you will be able to increase the number of pages of your sites appearing in web portals plus increasing the possibility of them getting visited and seen by people while surfing the web and looking at your sites. A recommendation would be to creating a kind of variation in the way links are placed at the bottom section of your sites homepages to look a bit different than the ones showing up at the top spots on your internet resources. For instance, if you have added the links at the top parts of your sites and they are created in the CSS menus formats or you have employed the graphics and images for linking purposes, considering creating a pair of simple text links to go at the footer areas of your sites pages and especially the homepages is a recommendation for using. Using the menus at the bottom pages sections is rarely seen on the web because such systems are great for the heading panels and parts.
Some text parts as well as the links types might be only great for having at the footer and bottom parts of the sites such as the way copyright notices are being written or when you want to write some text lines about your companies or sites policies on the web. You see, the lower spots on the homepages and other sections and internet resources can be regarded as the ideal means and ways for website maintenance and management. If you pay attention to the widely used forms of adding text links to the footers of the sites, you can easily notice that very small fonts types and words sizes are being used for this purpose as the links are serving as another form or parallel style of adding navigation links to the sites homepages and parts and using the smaller fonts can be recommended. The links at the homepages footer sections can be great for having the pages getting indexed faster in the search engines because they will create additional help and assistance for the crawling spiders and robots of the web portals like the engines locate and index your web pages and therefore the bottom parts of the sites homepages can be the ideal way of maximizing the percentage of the pages getting indexed.