Improvements to Reverse Image Search

- Position: the RIS links are currently in the lower left corner below "Related Posts", where they're easy for newbies to overlook. They should be either above or below the image itself. IMHO the best place would be between the image and the "Edit | Respond | Download | Full Size" bar.

- Open in new tab: when you click on one of the RIS links, e621 opens it in the current tab. IMHO, e621 should open the RIS in a new tab (just like clicking on a source URL).

- Horizontal RIS bar: if the RIS links are above or below the image, then IMHO they should be arranged like this:
Reverse Image Search: All | Google | TinEye | SauceNao | IQDB | Inkbunny

- Inkbunny search: IB lets you search by a pic's MD5 sum. While this isn't as good as a true RIS, it can still be useful. Unfortunately, it's tedious:
1) Copy the link to the full-sized image on e621
2) Go to the IB search page, tick the "MD5 Hash" checkbox
3) Paste the link from step 1 into the search bar and remove anything except the raw file name

I've also submitted this feature request on the Mantis tracker:
http://bugs.ouroboros.ws/view.php?id=118

edit:
Posts where the source is a direct link to a Deviantart, like post #382503:
http://fc07.deviantart.net/fs71/f/2010/339/a/8/dancing_bleakcat_by_bleakcat-d34afnd.jpg

"Google Search by Image" doesn't always find them, but googling for the image name almost always does. So what I do is take the raw file name:
dancing_bleakcat_by_bleakcat-d34afnd.jpg
and extract the individual words:
dancing bleakcat bleakcat

It'd be great if there were an option to do this automatically:
1) Extract the individual words from a direct Deviantart link
2) Put "deviantart" in front of them
3) Google the resulting string