My goodness, for those of us who are not hip, please put text under the infinity symbol that apparently means 'link'. Not intuitive at all. Tooltips are nice, but text is nicer.
This is one take I've been working on.
It's a bit big, so I ended up scaling it down a little and included it in this mock up.
After some more manipulation.
SVG Source Regular: (#333333) Hover: (#DD4C00)
This isn't an answer, but an observation of other "Popular" tools implementation of "Hyperlink" icon
Our icon should implement two of the three options.
Doing any two combination of three in mono-chrome should improve the current "Infinity" look of the icon.