https://github.com/google http://android-developers.blogspot.com/ Google Android Developers Blog https://github.com/JakeWharton http://jakewharton.com/ ActionBarSherlock, Android-ViewPagerIndicator, Nine Old Androids, butterknife https://github.com/square http://square.github.io/ okhttp, fest-android, android-times-square, picasso, dagger, spoon https://github.com/chrisbanes http://chris.banes.me/ ActionBar-PullToRefresh, PhotoView, Android-BitmapCache, Android-PullToRefresh https://github.com/jfeinstein10 http://jeremyfeinstein.com/ SlidingMenu, JazzyViewPager https://github.com/nostra13 http://nostra13android.blogspot.com/ Android-Universal-Image-Loader https://github.com/koush http://koush.com/ Superuser, AndroidAsync, UrlImageViewHelper https://github.com/SimonVT http://simonvt.net/ android-menudrawer, MessageBar https://github.com/cyrilmottier http://cyrilmottier.com/ GreenDroid, Polaris https://github.com/emilsjolander http://emilsjolander.se/ StickyListHeaders, sprinkles, android-FlipView https://github.com/loopj http://loopj.com android-async-http https://github.com/ManuelPeinado FadingActionBar, GlassActionBar, RefreshActionItem, QuickReturnHeader https://github.com/greenrobot http://greenrobot.de/ greenDAO, EventBus https://github.com/jgilfelt http://jeffgilfelt.com android-mapviewballoons, android-viewbadger, android-actionbarstylegenerator, android-sqlite-asset-helper https://github.com/romannurik http://roman.nurik.net/ muzei, Android-SwipeToDismiss https://github.com/flavienlaurent http://www.flavienlaurent.com NotBoringActionBar, datetimepicker, discrollview https://github.com/gabrielemariotti http://gmariotti.blogspot.it cardslib, colorpickercollection https://github.com/sephiroth74 http://www.sephiroth.it/ ImageViewZoom, HorizontalVariableListView, AndroidWheel, purePDF https://github.com/romainguy http://www.curious-creature.org ViewServer https://github.com/kevinsawicki https://twitter.com/kevinsawicki http-request https://github.com/chrisjenx http://about.me/chris.jenkins Calligraphy, ParallaxScrollView https://github.com/jpardogo http://jpardogo.com ListBuddies, FlabbyListView, GoogleProgressBar, FadingActionBar http://graphics-geek.blogspot.com/ Android framework UI team https://github.com/mttkay http://mttkay.github.io/ signpost https://github.com/dlew http://blog.danlew.net/ Android Tips https://github.com/facebook https://code.facebook.com/mobile/ buck Code Zen http://arpitonline.com/ iOS Android Google Plus https://blog.stylingandroid.com/ A techical guide to to improving the UI and UX Android apps