// With jQuery chaining, multiple statements on single line: $("#homeLink").css("color","red").attr("title","Back home");
// jQuery advantage even greater for animation / looping through elements
Offshoot projects gained popularity as well: jQuery UI, to quickly build web interfaces (just like Yahoo UI, a common choice before that). jQuery Mobile is another library that transform specially written HTML5 documents into gracefully degrading mobile websites and applications.
The Sizzle engine uses regular CSS selectors for elements, and supports pseudo-selectors: // Add a special CSS class to the first paragraph: $("p:first").addClass("firstPara");
With no work on your part, jQuery's cross-browser support extends even to the dreaded IE6!
There are plenty of plugins, and you can easily develop your own (like implementing outerHTML).
Here's the full listing of tutorials: read through it for a great overview, or refresh your memory. For in-depth info, just click on the corresponding link!