Jump to Tool Tips.
Creating in-page anchors. The more I started using anchors, they became almost natural. I also added a snippet in atom to speed up the process.
Add the anchor at the end of the section before the one you want to link to. Typically in the last sentence.
A line or two above where you the reader to click to, add an anchor tag:
example:
<a name="journey"></a>
Also see hoplinks.
See: http://www.hyperlinkcode.com/bookmark.php
If you do plan to use on page anchors a lot, you might consider using an auto-hide navbar.
When you want to provide you reader with more info on a word (ie. footnote), you can use a tool tip.
Simply add a <span class="help" hover="text">WORD</span>
following:
<span class="help" hover="This is the text you want to hover">WORD</span> and more text follows...