Chemistry Jobs in the UK
Jobs.ac.uk have a large number of science, research, academic and other vacancies in the UK and overseas. This includes many chemistry vacancies and other physical sciences jobs, including materials science, physics, etc.
http://www.jobs.ac.uk/categories/chemistry

Chemistry Jobs in Germany
Part of the Chemie.DE Information Service, this site provides regularly updated vacancy information about jobs in chemistry for Germany; the site is in the German language.
http://www.chemiekarriere.net/

ChemJobs.net
This site is the web's leading job vacancy site for chemists, biochemists, pharmaceutical scientists and chemical engineers covering Europe, Canada, the U.S., & the rest of the world.
http://www.chemjobs.net/chemjobs.html

Organic Chemistry Practice Problems
This absolutely beautiful introduction to organic chemistry by Bill Reusch at Michigan State University is a MUST SEE, MUST DO. It includes very well organized discussions, quizzes, and visualizations of all of the important topics in introductory organic chemistry.
http://www.cem.msu.edu/~reusch/VirtTxtJml/Questions/problems.htm

Jobs for Organic Chemists
This section of www.organicworldwide.net is the on-line resource for organic chemists looking for a job, or for companies or organizations who want to recruit organic chemists.
http://www.organicworldwide.net/jobs/

Chemseer
The site is primarily designed to aid chemists in their search for employment, listing a variety of chemistry, pharmaceutical and biochemistry jobs in the academic and industrial fields. Also included are a number of valuable resource tools for chemists, including links to online chemistry and chemistry-related journals, links to some chemistry-related companies and to UK academic establishments.
http://www.chemseer.com/

IUPAC Nomenclature
The HTML reproduction of the IUPAC Nomenclature of Organic Chemistry. You can search the database or choose a subject for recommendations on the proper naming of organic compounds.
http://www.acdlabs.com/iupac/nomenclature/

Chemical Elements
An online, interactive periodic table created by Yinon Bentor. Entries include basic information, atomic structure, isotopes, facts, and related links.
http://www.chemicalelements.com

Analytical Chemistry Basics
The goal of this on-line course is to provide the user with an introduction to some of the fundamental concepts and methods of analytical chemistry. The topics are arranged in the order in which they are typically presented in an undergraduate analytical chemistry course. Many of the reference documents that you will read contain links to remedial material and related topics.
http://elchem.kaist.ac.kr/vt/chem-ed/analytic/ac-basic.htm

Science Jobs
Free science career site for scientific job seekers. The Science Jobs site has a chemistry section that allows you to search jobs by sector (industry, government, academic) and by discipline. Jobs are worldwide.
http://www.sciencejobs.com/search.action