Flickr offers 1 TB of free storage space, 200x more than Dropbox or Google Drive, and this should be enough to backup your entire collection of photos online.
If you forget your Yahoo account password, you'll have to verify your identity to recover the account.
Flickr is an excellent place to find images that are available under a Creative Commons License but it won't let you properly attribute CC work.
Flickr has tags, user groups, places, notes, and more. The visual map below should help you understand the various concepts of Flickr [via]
We previously covered Downloader, a free Windows only tool that lets you download Flickr photos in their largest available size to your local computer.
If you would ever like to clean up or moderate comments around some of your Flickr photos, an online service like Flickr Cleaner should come handy.
Picasa lets you search for photos taken by any particular brand of cameras or a specific camera model. Works with digital cameras and camera phones.
Apply a Creative Commons License to your photos, documents, MP3 and videos with these free software tools. For blogs and websites, use the online Creative Commons License generator.
FlickrPoet is an interesting mashup that uses digital photographs from Flickr for visual storytelling.
Learn how to upload photographs to your Twitter account via email from Flickr or Posterous. This method of posting images is actually very handy for mobile phone users.
Compfight, which is unarguably the best tool around for searching photos on Flickr, just got a makeover.
Live Upload is a new add-in for Windows Live Photo Gallery that lets you upload pictures from the desktop on to your Facebook account(s).
Yahoo has released this interesting chart that shows the privacy settings of a sample of a million Flickr users from 2005.
Flickr Guide will show you how to do everything on Flickr. You can download and backup flickr pictures, set them as rotating wallpapers, browse pictures in 3D, make a screensaver and more.
vi.sualize.us (read visualize us) is an interesting web tool that lets you bookmark and save images or photographs that you may encounter on the Internet.
Google Image Search offers some unique features that aren't available in the default search engines of other photo sharing sites like Flickr, Zooomr, Photobucket, Facebook, etc.
flump is a simple application that allows your to download and export all public photos for any Flickr account.
Learn how to upload photos and screenshot images from web pages directly to your Flickr.com account with a right click.