Decaflon

I use Skitch (Invite only still, I believe, but I have invites if you'd like one). As well as letting you drag-select an area, you can just click a window to capture that window. Quite handy, really, as it has built in editing and uploading features (including directly to Flickr).

Well, I actually have this from Hrafn, but if you press Cmd+Shift+4 and then hit the space bar, you select the active window only. Then click and you have a perfect window screenshot, neat rounded corners and all.

I can't remember what I used back on Windows but there are tons of good little apps on download.com...

Update since Rich posted at the same time I did: this just leaves you with a pdf or png you still have to resize or upload of course. No fancy Flickr integration.

I mainly use Jing. I just have to turn off their horrible edge of screen shortcut bar thing - I mapped it to the print screen key and it works very nicely.

I use Snapz Pro. It lets you capture stills and video, and does lots of other cool stuff.

Nils,
You said

Well, I actually have this from Hrafn, but if you press Cmd+Shift+4 and then hit the space bar, you select the active window only. Then click and you have a perfect window screenshot, neat rounded corners and all.

I'm on Windows. Does this work here?

Nah. On Windows we have the handy prnt scrn button.

*Points finger at Mac users and laughs evil malicious laughter*

I was using the default OS X screenshot commands until I was introduced to Skitch. It took a little getting used to in order to remember new keyboard shortcuts, but I'm not looking back - that is until I'm faced with the decision to plop down some $$. Hmm, do I pay for software that does something as simple as capture and upload screenshots?

@Noel: no, in Windows, as far as I know, when you need anything beyond Prt Scr, you need an app.

I used ScreenHunter for a while and was happy with that. Also, there is SnagIt, by the fine people of Techsmith, but that costs 40 bucks. I hear it's great and obviously you'd get support, but unless you need all sorts of high-end features (and some video support), I'd go for ScreenHunter.

Update: also, SnagIt works with Vista, ScreenHunter doesn't appear to yet.

*Points finger at Mac users and laughs evil malicious laughter*

*raises eyebrow*

Does Prt Src let you select a window to capture? Does it have a timer?

(edit) repost, weird.

@jensized: it was a mockery in and of itself. Personally I feel the prnt scnr button is a waste of plastic. And ... coupled with paint to cut out the part you want ... *shudders*

Faststone Capture. Is quick, easy and free
Mark

Actually, on windows pressing ALT-Print Screen captures the current window so it's not as bad as all that. There are free better tools available though.

Windows Vista has a screen capture utility built in that includes highlighting tools - just type snip in to the start area to find it. That allows you to draw around the area you want.

I use Skitch too, a nice tool but a bit young (it needs some improvements)...

I use Jing and Picnik, depending on what I want to do with the picture.

I've tried a couple of other "capture" programs but looks like I now have to check out Skitch.

Geeez, I just can't keep up!

Snag It 7 is now completely free with an option to upgrarde to 8.x half price.

Jing has been updated with more options - upload to FTP, Flickr etc... - this is much better because you don't have to rely on their hosting when sharing like you did in the earlier version. You even create templates so that it automatically puts the embed code in to your clipboard.

I use FastStone Capture (windows), which used to be completely free for home use up until version 5.3, which is the version I still use. I like it a lot and it has a lot of different modes.

Rich, I would love an invite if you're willing to give one up! Thanks!

You guys all rock! Thanks for all the responses I'm going to check some of these out!

When I take a SS, I want the site only, no app corners, so I use ScreenGrab!:
http://www.screengrab.org/

I just watched the Jing video intro and it looks really nice. I'm going to try it out. I wonder how much it will cost when it's no longer a "project."

I use ksnapshot or the Firefox plugin on Arch Linux.

Definetely Skitch, really good for things like if I take a screenshot of something, and it has a serial number or some private information, I can simple draw over it really quickly and easily. mySkitch is also really nice to upload images to the web FAST, but the other webpost features are great too.