I usually shoot in 4608 x 6144 for portraits (3:4). I believe though 6000 is the max resolution in the viewer.Ħ144 x 6144 is the highest you can go.

Organize: Use Flickr's unique Organizr tool to edit your photos and arrange them just the way you want.Flickr is made for the 'photographer' who often are shooting pics 20megs or higher.

You can import your contact lists from Facebook, Yahoo, or Gmail to see who's already on Flickr so you can connect with them.

People: Flickr is better with friends.

You can also filter your activity to see activity on just your photos, replies to your comments, messages, or a custom view.

Recent Activity: Get a glimpse of all the recent interactions you've received on your photos, like faves and comments, by looking at your recent activity.

You'll get to see graphs and charts representing your source breakdown, recent views, and top views.

Stats: You can see exactly how other users are finding and viewing your photos on Flickr by accessing your stats.Members of a group can share their photos and participate in group discussions. Groups: Groups are based around a central topic or idea and allow users to freely join.You can add up to 50 photos or videos to a gallery. They allow you to publicly showcase other users' photos. Galleries: Galleries are different from albums.It's a great way to bookmark photos you want to come back to later by accessing your Faves tab. Faves: Beneath every photo shared on Flickr is a star button that you can click to favorite that photo.You can share entire albums with friends.

Albums: To keep your photo collections nice and neat, organize them into albums.Any uploads you set to be publicly viewable will appear in this section. Photostream: Your photostream is your very own public portfolio of photos.

You can also showcase up to 25 of your favorite photos and collect testimonials from users who are fans of your work. Profile: Just like any other social network, you get a profile on Flickr where you can upload a user photo and write a brief bio.

Flicker photography