Technology: 10 Must-have 'Reference' Android Apps!!
1. Wikidroid (Reference) - Wikipedia in your pocket - replaced Wikipock if your an information geek on the go..
2. Google Sky (Reference) - Would you like to see the location of all the planets and stars in the universe from the comfort of your armchair? Point your phone in any direction because this is more than a map of the sky! So much fun..
3. IMDb (Reference Movies) - If you have not yet heard of the International Movies Database website by now, you must be hiding under a rock! "What was the name of that movie?" The next time you can't remember the name of an actor, television show, or film, IMDb Movies & TV saves the day. One of the handiest reference websites on the planet, IMDb never fails when it comes to looking up anything that has to do with TV, film, or Hollywood. 
4. Web MD (Symptom Checker) For all you hypochondriacs out there! WebMD is much more than a diagnosis app, although you certainly can use it to input symptoms you are experiencing and find some clues as to what's ailing you. It also contains listings for healthcare professionals and pharmacies in your area, as well as first-aid guides - simple instructions for dealing with an emergency that everyone should have accessible at any time.
5. Google Translate (Language)
There are many news reference applications out there but this is really useful. It covers international, national and regional news in your part of the country. Good if you're travelling on the bus and want a quick update.
6. EverPaper (Web page saver)
This application simply has the ability to save web pages so you can read them later. Very handy for all budding journalists or students. It is the most solid Instapaper client for Android according to reviews. First off, just
like Instapaper (which you need to have first - they go hand in hand) it’s ridiculously clean...It has a wealth of options, and even has Evernote
functions, however limited. As you’re browsing, you can add items to your Instapaper account, and
when your Android device syncs, you can read them at your leisure.
7. Google News (Regional)
This application is intended to ease the access to the Google News
regional editions. Based on the current language set in the phone and
the coarse position of the user, the application tries to find out the
best regional edition for the user.
8. Skype (Instant Communication/Telephone Calling)
- To be perfectly clear, I don’t think Skype is 'the best' communication app for Android, but it’s one of those tools that I will continue to use because other people use it, too, and so it’s often the quickest way to get in touch with certain people. In short, the Skype app is one that I rely on, even though it has some functional limitations (namely, no support for front-facing cameras, as well as taxing the battery pretty severely).
9. Dictionary.com (Language/Spelling)
- The free Dictionary.com app for Android delivers trusted reference
content from Dictionary.com and Thesaurus.com, including more than
325,000 words and definitions and 300,000 synonyms and antonyms. The app
also features phonetic and audio pronunciations, spelling suggestions
and Dictionary.com's popular Word of the Day that is enjoyed by millions
of people.
10. Words with Friends Free (Word Game - just for fun!) - The Scrabble-like game from Zynga, Words with Friends, is among the most popular mobile social games around. If you own an Android phone but your friends are on other devices, such as iPhones or iPads, you can still challenge them to head-to-head wordplay, as it doesn't matter on which platform your opponents are playing. While some Android users have reported stability problems with the game, Words with Friends is in such high demand that most people will grin and bear it… especially since it's free.