I adjust according to the post

Width of 200-250, height auto adjust, except for market report graphics - which are full width - 700

It depends on what I'm uploading and what the picture's purpose is.

Normally nothing larger than 300 px. The entire width of your post is 600ish.

It depends on the image and post.

It varies, but generally 300 - 350.  It can be manually adjusted within the post, so no worries if the size needs to be adjusted.

Depends on the layout. 

Usually no more than 500 in the first box for the Q&A answers.  For the blog, it needs to "look pleasing"

700 for full width.... I like that best...

I believe the page width is around 708 pixels and using one half to a third of that is typical.

350 - 400 if it's to the side of the text.

650-700 if the graphic is full width.

AR sizes the photo to a width of 700. and that is what we use. A

It varies on the post and the layout

for bulleted posts I use right alignment for the image

Marc Swartz, CPA, CA, Real Estate Broker is right..depends on the image and the post.

Most of the time I select 600.

640 maximum for width as that is the best for mobile devices.  When I wrap text I go between 200 and 400 for width based on what it is

Depends, but I rarely use 700 width since I noticed it looks bad on mobile devices. 

Peter Mohylsky - always less than 700 width - mostly 600. In re-blogs, it's about 300-400 wide and proportionate for height.

300 wide, unless it's a photo post, then I do 650.

If it is a graphic that is right justified with text around it about 300 Pixels wide no more.

500

I've heard Google is starting to index photos, so I transfer over a large image and then make it fit in the spot I want it to fit in my post. Usually around 370 and the other size adjusts automatically. 

Generally about 400x300 with a 33 buffer around it.

I save mine as 800px max. then insert to full frame at 700px across or 350-400px if I am using them on the side of the post.

300 max.

Maximum image sizes before adjusting:   640 x 480 or  800 x 600.  I use Irfanview to resize the pics.

AR will max you out at 700 on blog posts, and at 590 on questions.  You may want to make them smaller, depending upon the post.

Thanks for the question.

I usually use 400 unless I want to fill the top, which is 700.

I adjust it according to the size and configuration of the post. Most of mine are 300 pxl or less.

I use 1600x1200, but can go smaller for a faster upload.

It depends on the post and the photo.   

It will vary depending on purpose of pic and how many are being used.

Depends on the logistics of the posting or commenting at the time

I have no idea.

If it fits, I use it! Not a techy!

I always select the medium pic for my posts.

Most often 430 for large and 300 for side by side Peter Mohylsky