The subject of the entry should already serve as a link to the entry. If it doesn't, there's a problem with the style and that should be fixed.

This is a sensible suggestion for accessibility needs.

(Edit:) Maybe the "Read More" link could act like the "Expand" link in comment threads. If you regular-click it in a browser that supports Javascript (I think it's Javascript?), it expands a comment thread. If you instead open it in a new tab, or are using a browser that doesn't support the scripting, it goes to the thread starting with that comment.