Well that depends on what type of apps you're after. We have lots of threads here on different apps, try a search. I recommend Dropbox and Evernote, both very handy apps. Download Appshopper it's another way to browse for apps. You can also input a wish list and when an app comes on sale it will alert you. A great way to get paid apps free.
The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.