Demystifying Synthetic Organic Laboratory Techniques or 'Not Voodoo X.4'

For everything you ever need to know about synthetic organic chemistry practical advice and tips: http://chem.chem.rochester.edu/~nvd/?page=home

The site 'Not Voodoo X'  has just been updated http://www2.chem.rochester.edu/~nvd/new/index.php and the Purification section expanded with Distillation techniques http://www2.chem.rochester.edu/~nvd/new/pages/purification.php?page=purify_distillation and further updates will be added. The latest is ‘Flash Column Chromatography’ http://www2.chem.rochester.edu/~nvd/new/pages/chromatography.php?page=flash_column_tips
Please note: Further updates are being made daily and it's best practice to use the original link to see what changes have been made 
http://chem.chem.rochester.edu/~nvd/?page=home and the above 'Not Voodoo X.4' link is only a beta testing version before it's final release.

Another useful US-based Organic, Analytical and General Chemistry learning resource is Chemistry LibreTexts https://chem.libretexts.org/

Of course, don't forget the RSC's own LearnChemistry website http://www.rsc.org/learn-chemistry for excellent resources for learning and teaching.
The RSC interactive Periodic Table app can be accessed from http://www.rsc.org/periodic-table

The latest Synthetic Organic Chemistry iPhone/iPad app to be added is the well-known Organic Syntheses https://itunes.apple.com/gb/app/organic-syntheses/id1087152400?mt=8