CSS Frameworks Tutorials and getting started guides

First thing, it helps.
Exactly the same as in Server side languages and client side languages, frameworks are a great improvement (in most cases) to a regular off the board development.
There are a lot of CSS frameworks these days, Noupe guide to CSS framework gathers the best of the guides and tutorials for each of the major frameworks.
I personally tried to use several of them and i guess the 960 CSS framework proven to be the easiest to handle (for me, and i usually don't do CSS).

Elliott Kember: Sexy Page Curl JQuery plugin

Just one of those fun-and-no-real-use things you might want to put in your blog/personal-homepage.
Elliott Kember created this Page Curl plugin for JQuery which shows a page curl on the corner of your website, with the option to set an image below it.
Check the demos.

CSS Sprites: onilne sprite generator

The CSS sprites technique is basically a technique that reduces the CSS requests when dealing with background images.
Example: Lets say you have 2 selectors in your CSS,

div#first
{
  background: url(first_bg.png);
}  

div#second
{
  background: url(second_bg.png);
}

when loading your CSS file will preform 2 requests, one for each image you specified as background, so when dealing with a complete design, you are probably talking about 40-50+ image requests as such.

CSS sprites solves this problem by loading only one image, that contains all the images you will use on your site within, and displaying the correct image by playing with a combination of a background offset (background-position CSS attribute) and the size of the element.
This technique can be very effective for improving site performance, particularly in situations where many small images, such as menu icons, are used. The Yahoo! home page, for example, employs the technique for exactly this.
Examples and full explanation can be found here at the CSS Tricks.com - CSS Sprites: HowTo or here at the List Apart: Image Slicing's kiss of death article.

Today, i found a Sprite image generator that actually generates this Sprite image file from a zip file you upload and containing all the images, and produces the image as said before, but also the output CSS statements.
very useful.

Noura Yehia: 45+ JQuery user interface plugins you must use

The web is different these days, i remember the days when anchoring (<a name="jumphere">) were considered as magic.
These days, following the overwhelming outburst of javascript frameworks, it's getting easier and simpler to generate extended, usable, fun and sexy interface.
This 45+ JQuery user interface plugins you must use list, is packed with some slick design and usability supplements that should be strongly condered when choosing a javascript framework and user interface guidelines for your application.

WireIt: Javascript wiring library

one thing i was always trying to figure out, is how to make lines in HTML/JS, after recently finding out about the Yahoo Pipes interface i came across this lightweight library that does the same thing, show objects are wired to each other.
There is an open source JavaScript library, which enables you to create this "wired interface", named WireIt.


WireIt is very well-documented & has some attractive examples.

Which fonts are the best for web usage?

A great article from sitepoint, about 8 definitive web font stacks for a better and cleaner web typography .

MochaUI: Javascript User interface library

MochaUI is a web applications user interface library built on the Mootools JavaScript framework.

Uses:

Web Applications
Web Desktops
Web Sites
Widgets
Standalone Windows and Modal Dialogs

Get it and watch demos here