currently there's no way in chrome to select a part of a link (say starting from the middle of the link).
In firefox it's trivial, with alt+select
see explanation here:
Today I learned something new about Firefox. You know when you're trying to select text inside of a link and you end up clicking the link, dragging the link, or selecting more text than you actually want (by starting your selection outside of the link.) Well, there's a better way. It turns out that you can hold down the alt key during your selection and it will select as if it was text and not a link