On July 1, 2011, the Windows Phone Marketplace has reached an important milestone – reaching 25,000 apps in total. While we’ve seen quite a bit of "spam apps" in the marketplace (despite introducing a 20-app limit to bulk app publishing), dozens of quality official apps were added into the marketplace over the past week. Below is a few of these newly added official apps which we think you’ll find useful, check them out:

	AccuWeather Provides detailed local weather news and information, complete with interactive panoramic views, live tiles, and Bing Maps.
	AllRecipes Access over 40,000 user submitted recipes, complete with live tiles and daily recipe push notifications.
	AmazonFresh Exclusive to Windows Phone, AmazonFresh allow users to shop Amazon.com’s grocery aisles, choose home delivery times, access accounts, view past purchases, and place orders quickly and easily.
	American Airlines Introducing the travel app that understands who you are and where you’re going. From where you’re departing and from what gate. Where you’ll sit and even where you are on the standby list.
	Best Buy Provides a fresh new way to shop for the latest and greatest technology. Browse the full Best Buy product catalog, compare products specs, & create your technology wish list.
	Billboard Provides you with access to Billboard.com’s 16 most popular charts, as well as available chart history. Sample 30 second clips and purchase from the Zune store from within the app.
	British Airways This app guides you smoothly through each step of your journey with instant access to live information about your next flight. Plus, you can use your phone as a boarding pass on many routes.
	Colbert Report’s The Word App Get every Word at your fingertips, by date or alphabetically. If you’ve dreamed about having Stephen in your pocket (and who hasn’t?), you can stop dreaming and start downloading.
	DC Comics Features more than 80 comic format titles published monthly and over 1,000 comic books and graphic novels published annually.
	Dictionary.com Delivers trusted reference content from Dictionary.com and Thesaurus.com, including over 2,000,000 words. It also features audio pronunciation and updated daily content.
	E! Brings you the latest celeb news, A-list fashion photos and interview videos from awards season’s marquee events.
	Engadget Get the latest news on Engadget.com, watch "The Engadget Show", listen to the Engadget Podcast, and see features, reviews, unboxings, and hands-on coverage all in one app.
	Epicurious Search more than 30,000 recipes and cookbooks, reviews and ratings, and save and share your favorite recipes with others.
	Eventful Access to millions of events, schedules for all of the venues near you, and tour dates for over 130,000 performers.
	FlightAware This app allows you to track the real-time flight status for airline flights worldwide and private flights in the US and Canada.
	FoodSpotting See the nearest, latest and best dishes around you, look up a restaurant and see what’s good there, and take photos of foods you love & share where to find them with others.
	Foursquare See where your friends are, learn about the places they frequent and unlock rewards as you travel. By “checking in” users share their location with friends while collecting points and virtual badges.
	FOX News Read the hottest stories of the day, browse through photo galleries, and watch the latest video clips from FOX News Channel. With live tile support.
	Gowalla Check in and share your highlights at local places, and pick up unique pins and rewards, adding to your Passport along the way.
	Kik Messenger Cross-platform messenger app that connects you to your friends in real-time. Use Kik to chat, share pictures privately, plan outings with groups, and stay connected to the people who matter most to you.
	MLB.com Follow your favorite team everywhere you go with comprehensive, up-to-the-moment action, including live home and away audio broadcasts.
	MTV News Keep up to date with the latest pop culture news on music, movies, television, celebrities, and gaming.
	NBC Nightly News Stay on top of the day’s biggest news stories, anytime, anywhere with NBC Nightly News app.
	New York Times The app downloads and syncs the latest news directly to your device for online or offline reading. Share articles through Facebook, Twitter and e-mail. And, get breaking news alerts to be the first to read about events as they occur.
	Pikchur Pikchur for Windows Phone 7 makes photo sharing on your favorite social networks and micro-blogging platforms fun and easy, upload once and share everywhere!
	Qype All the information you might need at your fingertips, including addresses, directions, phone numbers, photos and vouchers of your favorite restaurants, bars, nightlife, shops and services.
	StubHub Fan-to-fan ticket marketplace that lets you buy the tickets you want, or sell your extras with features that let you control your pricing, edit ticket in-hand dates, and delete, deactivate, or reactive your listings.
	The Washington Post – Trove A personalized news and information engine. It aggregates the Web’s most interesting stories from more than 10,000 sources, and gives you the power to customize what you see and how you see it.
	VEVO Discover, watch & share your favorite music videos wherever you want, whenever you want. Be the first to see exclusive new video premieres and watch live streaming concerts.
	VH1 Watch video and browse photos from all the current VH1 shows, music events and hits from the past. Updated daily with fresh content.
	Weight Watchers This calculator allow you to simply enter the relevant nutritional information from the food packaging – or your weight and the time and intensity of the activity – to calculate PointsPlus values.

We also covered several new apps including Evernote and IM+ last week. What other official apps have you discovered in the Windows Phone Marketplace? What else would you like to see on the Windows Phone Marketplace? Let us know in the comments below!

(Thanks to WPCentral for the keeping track of the list of official apps!)