Work your way through the alphabet typing one letter at a time into the address bar of your browser, and then auto-complete the first link suggested.
NB Doesn't work if you're the kind of person who clears out their cache/recent sites visited on a regular basis.
A: http://www.afreegreetingcard.com One of my favourite e-card sites.
B: http://www.bearpodcast.com/?p=1000 I keep trying to get my LJ Friends Meme, which I can't get to work, no matter for how long I leave it running.
C: http://www.cardfountain.com/ Another card site when I was hunting for some different ones.
F: http://www.freefoto.com/ A super place to get photos to make LJ icons and/or wallpapers. All free to use, just credit the site in Comments.
G: http://www.glittergraphics.us/ Glitteries for making LJ messages
H: http://home.comcast.net/~aerye/ds_seekrit_santa_index.html Index for the ds_seekritsanta stories.
I: http://images.google.co.uk/images?q=%22new+year%22&hl=en&lr=&sa=N&tab=wi&sourceid=tipimg When I was looking for images for New Year icons.
L: http://www.landsend.co.uk/ I was looking for some warm gloves.
M: http://memegen.net/viewmeme.pl?meme=1074744726 A colour icon meme I never got around to doing.
N: http://news.bbc.co.uk/1/hi/magazine/4566526.stm A link to a 100 Things we didn't know a year ago that maubast posted.
P: http://photobucket.com/albums/v318/Nakeisha/ When I was uploading images for posting to LJ.
Q: http://www.quizgalaxy.com/quiz.php?id=71 Another meme I did, but didn't post.
S: http://shawstudios.com/halflife.html A link to queenbamfie's Pros Christmas story.