HiSPeed's Nethack Helper; For all your priceid needs and more; Added Alchemy Helper; More Accurate than Clippy; Spoiler.
Thanks to Google not caring about meta tags any more this had to be added here. Have a great day.
Oh, and please update your bookmarks!
Public HiSPeed's Nethack Helper has moved to http://nethack.holics.at/ (old version is still here).
As of now, 2012-11-30, there is no development version any more. The helper still works in current browsers after 4 years of not changing a thing :-)