Weather:    

Site NOAA Weather and Clear Sky Clocks  (others weather links at TAC mainPage  sites page  or newSitesPage)

Australia-iTele: SkippySky TimeAndWeather, SunAndMoon,  AU clouds, 5-day SSO, delayed IR satellite loop. 
NewMexicoSkies:  Clouds, ClearSkyClock,  NOAA Weather. 
Spain-iTele: SkippySky. TimeAndWeather,  current clouds or EU satellite IR loop or weather loop.

Webcams for San Jose CA area with Morgan Hill and both south as well as west facing webcams at  Lick Observatory

Time  for UTC and USA time zones.  Also check out current sidereal time (right ascension (RA) that is directly overhead at the current local time.  Enter your longitude or a city name.  You can get time and weather most anywhere in the world using links like these Australia , New Mexico, Spain.

Astronomy Clubs/Groups  in central California (good info at many):   TAC - The Astronomy Connection, SJAA   San Jose Astronomical Association,  PAS - Peninsula Astronomical Society,  SCAC - Santa Cruz Astronomy Club

California Bay Area Observing Sites  My map of commonly used central California sites.

NGC/IC Project
Fantastic site to get pictures of the NGC or IC objects easily.   There are pages for  Messier  and  Herschel 400

Adventures In Deep Space has a huge collection of advanced targets and projects for visual observers. 

DSS and Object Search: SDDS3 object image search frontend: DR8 tool.  Harvard SDSS catalog search. Identify objects from search of MANY catalogs easily using  VizieR Service 

Astronomical League   Large number of organized observing projects for ideas or earning cirtificate/pins.  If you want to work on your own this site has most of the common lists of things so you can get ideas for your own 'quests in space'.

SAC Observing Lists - Saguaro collection of many fine lists and also see their astro links.

Heavens Above Sattelite And Tracking 
A nicely done page that can predict locations for all sorts of non-stationary objects like man-made spacecraft/sattelites as well as planets  astroids, and comets.

STScI Digital Sky Survey  (DSS)
Advanced users can enter RA and DEC and get pictures from the DSS library.   This is an amazing and powerful tool so play with it to learn it.  (Enter  in this format  RA  22 37 15   Dec  +34  25  42  and you may want to select file format GIF  unless your defaults can display FITS)

WikiSky - Deep images of full sky with object search. Remarkable.

Formulas And Calculators

'Pocket Sky Atlas'  from Sky And Telescope and by Roger W. Sinnott
Highly recommended set of charts nicely organized that contains detailed and well done charts for medium to bright deep sky targets.  

'Planisphere'   Currently by 'Datalizer'  
A sort of analog computer for the night skies meant for stargazers who are just starting out.    You dial in the date and time and this shows you what should be above you in the  night sky once you orient it with the north star.  This is a good tool for observers just starting out who may be not used to the night sky and a chart may be overkill.   Orion telescope basically this same tool.

Stellarium - A free but very useful sky atlas that is supported on most platforms.

Virtual Moon Atlas - A free but very useful computer  program to observe the moon

'NightWatch'   by Terence Dickinson   Fourth Edition has southern charts and pics as well

'DeepSky Companions: The Messier Objects'   by Stephen James O'Meara
A good book for field and general detailed info.  The Messier Objects are generally the 1st targets people start with as they are bright.

'Skywatching'  by David H. Levy 
Both are helpful for astronomers taking their initial steps in stargazing and both contain  simple low-res charts as well as large amounts of useful tips.

'AstroSpotter'   by Mark Johnston
Ok, this is a cheap plug for my own ideas on this website ...   lol.    Not available in any stores ... 

For People  Once They Get Hooked

Computer Star Charts -  MegaStar is a PC only tool with a feature rich and my choice as it integrates with RealSky DSS images (RealSky is sadly out of print)  The Sky is very popular as a full featured star chart program.   SkyTools is a powerful charting program although the inteface is often non-intuitive it has amazing avility to accuratley show star fields.  There are several more choices.

'SkyAtlas 2000.0'   by Wil Tirion and Roger W. Sinnott
Must-have double-size field reference made larger with each of it's fold-out maps (total of 26 huge maps plus several maps for detailed looks at some areas of large interrest).   There are other references of an even more extensive nature but this is a classic.

'Night Sky Observer's Guide' by George Kepple and Glen Sanner
Very popular and wonderful 3-volume large format book set.  North sky Autumn/Winter, North sky Spring/Summer and Southern skies.

'UranoMetria 2000.0'   by Tirion, Rappaport, Remaklus
Two large format book volumes (North and South) that are 1.85cm per degree for main charts and loaded with objects and stars to mag 11.  This is a must have for people who really enjoy this hobby.  An excellent complement to your choice of computer atlas.  Note that version 2 is greatly improved over version 1.

'Celestial Sampler'  by Sue French
Great tours of sections of the sky that is aimed at observers that have perhaps found and observed all of the Messier objects and are in pursuit of the many deep-sky objects.

'Advanced Skywatching'  by Robert Burnham, Alan Dyer, David H. Levy and more
Great tours of sections of the sky that is aimed for observers that have perhaps found and observed all of the Messier objects and are in pursuit of the many deep-sky objects.

'Herschel 400 Observing Guide'   by Steve O'Meara
Extensive coverage and pictures of the 400 deepsky objects called the Herschel I   list.   I feel the book could have been organized in a more friendly way but once you find the actual objects you are seeking it is a  great reference (for a book).