Adding “Read More>>” link to bottom of main pag

If you write alot in your blog like me, you’ll notice that WordPress will automatically cut your current month’s archive into different parts if you’ve written alot during one month.
So, the user is reading your blog and comes to the bottom of the screen where it just ends. Not all users know to goto your “archive” section and click on links there.
I’m looking for a plug-in that adds a link at the bottom of the main page that says like, “Read More>>” or “More from this Month” or something like that.
Anyone got some code for this?
Thanks!