My blog is a link to an internal page. Is anyone else doing this? Will a lack of keywords on the home page but plenty in the inner pages affect rankings?
If your blog is an internal page and not your homepage, I dont see that as a major problem. Do a search on your chosen keywords and have a look at your competitors - you will notice that there will a lot of pages which are not the home page, but an internal page. If your blog is optimised well enough, google will find it.