Great Data Sheet Catalog Site, but does it have limits??

So far, there were no electronic part that I could not find a data sheet for in this wonderful site!
However, it seems to have a limit on downloading data sheets. After downloading a couple of data sheets, it started giving me a "you are not authorized to access this page" message whenever I tried downloading a data sheet PDF (the searching feature is still working and the site itself, but only the downloading is not)
I tried to find any reference to this (quickly) but couldn't.
The site's search is very fast and light. It gives you results about your part from all possible manufacturers in an easy to access and quick way, which is what makes it better than any other data sheet site

بالرجوع إلى: Datasheet catalog for integrated circuits, diodes, triacs, and other semiconductors, view (نظرة على ويكي Google الجانبي)

Get Started with LISP

Lisp (programming language) - Wikipedia, the free encyclopedia
This is a great place to start especially if you're new to lisp. It gives the necessary introduction about the language and a simple quick discussion of its features then it provides you with resources about the language where you can go if you need more information.

Practical Common Lisp
The most appreciated book on LISP. The book is published in HTML format and the site offers a download of the source code (not the book itself).

LISP 1.5 Programmers Manual [PDF]
The first version of LISP

InterLisp Reference Manual [PDF]
A manual for the Interlisp dialect

ANSI LISP Standard
The ANSI standard for the language (Common LISP)

Tutorials:

• Practical Common Lisp an online book by Peter Seibel.
• Lisp Primer by Colin Allen and Maneesh Dhagat.
• Lisp tutorial by Faiz ul haque Zeya
• A quick guide to starting with Common Lisp.
• Common Lisp: A Gentle Introduction to Symbolic Computation by David S. Touretzky, available online and aimed at beginners.
• Casting SPELs in Lisp A cartoon introduction to Common Lisp.
• On Lisp free downloadable version of the book by Paul Graham.

Fresh Air For Windows?

"Fresh Air For Windows?
from Slashdot by timothy
jmcbain writes 'The NY Times has an opinion piece on how the next Windows could be designed (even through Microsoft has already laid plans for Windows 7). The author suggests 'A monolithic operating system like Windows perpetuates an obsolete design. We don't need to load up our machines with bloated layers we won't use.' He also brings up the example of Apple breaking ties with its legacy OS when OS X was built. Can Windows move forward with a completely new, fast, and secure OS and still keep legacy application support?'

Read more of this story at Slashdot."

It is actually over ... I don't think anyone is using the Windows 3.11 programs any more, so why not a clean slate? Actually that was visited in Vista but MS failed to deliver their promised OS especially the WinFS feature.