A VARIETY OF ONLINE TOOLS AND LINKS
Online Ukulele Tuner - Soprano, Tenor and Concert Ukuleles
Online Ukulele Chord Finder (All types)
Alternative tunings (For the adventurous) also try here
There are very many which include:
Standard
GCEA. Aka: my-dog-has-fleas, C-tuning
Old Time banjo-based tunings
Open C Major: GCEG. Aka: banjo tuning
Open C minor: GCE♭G Aka: minor banjo tuning
Sawmill: GCFG
Double-G GDGA (taken from banjo "Double C" tuning)
OTHER WEBSITE DIRECTORIES OF UKULELE SITES
NCC Ukelele Society - The mighty ukes of Newport, Maine USA - contains excellent side links for real beginners
http://nccukulelesociety.wordpress.com/
Top 50 Ukulele websites
http://www.boatpaddleukuleles.com/top50/
Top 100 (Different) Ukulele websites
http://www.topukulelesites.com/
The Ukulele Underground - Great Site, click the link for a bunch of free tools and resources
Ukulele Tabs.com is good source of sheet music, Online Tools, Chord Charts, a guitar to uke convertor and online chat forums