My Dears,
Since 2010/03/16, I've got your 439 votes, and I could see more people prefer 4 zones. so let's stay with 4.
Thanks for your help. I love you all!
* Features
# Open a link/text-url in Front-End/Back-End, or drag UP to Front-End, Down to Back-End
# Open a link/text-url Before/After current tab, or drag LEFT to Before, Right to After
# Drag selected text to 4 different areas(LU/RU/LD/RD) to search by different search engines
# 17 search engines built-in: wikipedia, google, douban, twitter, bing, taobao, shooter, amazon, delicious, flickr, youtube, ebay, imdb, google encrypted, wolfram alpha, yahoo, technorati
# Easy to add any search engines by yourself (right click the URL bar --> edit search engines --> choose one --> copy the search URL --> paste into the "options" page)
# Press "ESC" to cancel your drag
* To-do
# More built-in search engines (please paste your favorites in the comments)
# Save image
# Access to Chrome's search engines
# Please help to vote: Do you need more drag zone? --> http://goo.gl/OxQR