That's right, not many.
Citing references isn't just a common courtesy - it's how you avoid all sorts of ugly accusations like "plagiarist" or simply "thief". I know I've missed some here and there, but for the most part, I make a point of giving artists and websites credit for their work. It really takes no time at all to add a reference somewhere in your articles, and I'm going to look at a few ways to do so. These won't be "official" ways, which probably vary from country to country; just simple methods to make it clear you didn't create something that's not yours and ensure people get credit for their work as well as cover your own butt. Technically, often legally, you should be asking permission before posting anyone else's content. (which again is different from country to country, art vs news, etc, but still at a minimum a courtesy) This is especially true if you're profiting from the use of this other person's content, which in many cases will include simple banner ads. (If someone really wants to make a case against you - "simple banner ads" have been the downfall of many a torrent site because no matter what side of the P2P debate you're on, paid advertising allows the argument "They're profiting from our content.")
If I came across this photo on a website, (one I'm particularly proud of, no photoshopping besides a vertical inversion) I would expect to see someone giving me credit for it. If someone was making money by using my image without permission, I'd have more problems with it.
In Google Blogger, the image handle that appears when you cursor over an image has a link near the right side "Add caption".
|image from Nplusplus|
You should actually take it a step further and link back to the original place you found the content.
|image from: http://nplusplus.deviantart.com/gallery/7470463#/d1qjs8p|
image from Nplusplus
When referencing content that exists on a website, you're generally supposed to add the date you found the information, due to the ever changing nature of the internet. (This is usually just when citing a research source though, so those interested know how up to date your data is.)
If your blog platform doesn't have an "Add caption" option, you're not technically skilled enough to create the table and caption area yourself or it's just not reasonable due to formatting, you can still cite your content - maybe in bracket's ( ) [ ] or italics.
For example, pretend that right now I'm talking about something in regards to that image - maybe about how this is the same lake from the first Canadian $20 bill, how I climbed some of those mountains, pointing out the glacier in the top or how I took that sitting in a canoe. [image on the left by Nplusplus] Then we just go on talking about other stuff. Blah, blah, blah, lantz, blah, blah.
[Art above from other sources: Reflection photo by Nplusplus]
[Art above from other sources: "Reflection_by_NPlusPlus.jpg" by Nplusplus]
[Art above from other sources: "Reflection_by_NPlusPlus.jpg" by Nplusplus]
Taking this a step further, if you use an image from someone that's a picture of someone else's work, you should cite both artists. In the following photo, if you simply said "from Nplusplus" and linked to the page you found it on, it would imply I was also the sculptor.
|Foule Illuminée sculpted by Raymond Mason|
photo by Nplusplus
Text citations should be handled the same way, be it a quote or a reference to an existing webpage. Both should be encased in "quotations" and often formatting is used to make them stand out from your work, such as using italics, changing the font size, using another font type or
"giving them their own paragraph,"
"which is sometimes indented to stand out more."At a minimum, the author, speaker, writer or website should be mentioned, with a link to the web page if applicable. Proper citation (for research, projects, assignments, or sounding like you actually know what you're talking about and want to be taken seriously) usually expects to have Author, Book Title, Publisher, Year and sometimes even a page number cited. (This extended information will usually be on a separate Works Cited page, while just author and possibly page number is left with where you use the quote)
You should also avoid editing quotes, though many editors will to add context, replacing words with descriptions in [square brackets] - for example, if a book was written about hobby websites, a chapter a site, the direct quote might be something like "That place is helpful for a lot of people." - but if that sentence was from a chapter on my site, it's missing the context and is a little confusing. It would probably get edited to read "[Wargaming Tradecraft] is helpful for a lot of people."
[update] Colonel Shofer and Kirby both point out that another way to reference images is to simply link the image to the original source. You can insert the image and point to where it sits on the other person's server "IMG SRC = "http://www.notyourserver.com/image.jpg" " or reupload the image to your site and then place an "A" tag around it and link to either the original image or page. The down side to just inserting the image as a link is if the person whose site it's hosted on removes or changes the image, your site is also changed; uploading the image to your server first has the benefit that your content remains the same.
Dethtron also has a valid point that depending on the laws where you're from, you can use publicly displayed images to certain extents. This includes modifying or displaying them without permission. Usually you still can't profit without permission though.
[Update] Asking Permission / Paying for References
Just adding this to give another perspective to people on the topic of going a step beyond just citing references. A journalist and photographer recently got some media coverage over some views they shared regarding citations without permission. Long story short, so you don't have to click the link:
The wife of the creator of Angry Birds wore a dress styled like the red Angry Bird.
Photographer takes pictures at a formal event.
Many prestigious media outlets then use his pictures, without permission, to write their own stories. Only one offered to pay, but backed out when they found the cost. Others asked permission after being caught, but still no offered of compensation. (Until lawyers got involved)
"From aggregates such as Huff Post / Mashable etc. you sort of expect nothing...
...But for crying our loud: LA Times? Pulizer Prizes and all…"
"Matti has three kids and his images bring the bread and butter to the table. "It's true... the big button topic these days being the downloading of music and movies... whether you dis/agree on them at a personal level, you have to at least realize that artists deserve something for their work. Why not treat photographers the same? Their equipment costs money, as does their travel, food, credentials, time, etc.
Now, I'm not actually this zealous about citing, and I'm not going to pay someone $200 to use a photo of a woman in an Angry Birds dress on my blog. But I'm not making a business on reporting up to the minute breaking news. I'm not even a business, nor am I profiting from this site. Images I grab have typically been around for a while, aren't in high demand and have been made available online. I cite my references and I don't edit out signatures and watermarks. Again, I just wanted to tag this on to this article to give another perspective on the whole using other peoples works thing.
Of course, y'know what I don't see? Anybody citing who made that dress. As long as we're going to nit-pick about giving credit where it's due, lets not leave anybody out.