I don't know of any free stock websites, but the deviantart community has many photographers who provide their photographs free of charge (just check whether or not the artist is willing to do so, they usually say on their page)

some artists specify that they may only be used for non-commercial purposes, but there are a few rare ones who give free reign over their photos.

check out this thread; lots of great options.

http://www.archinect.com/forum/threads.php?id=94387_0_42_0_C

great thanks guys! that's what i need^^

for my architectural renderings I use a lot of images from http://www.viz-people.com/

I usually go with the following:

Stock Imagery

Cut out people

Textures for materials

In 16 years of professional archviz, personally, I've found http://www.3drender.co.uk to have some of the best 2D cut-out people / trees / plants etc.

Plus, they also have packs of architectural textures, skies etc.

Lots of free stuff as well :)

Hi

The Digital Cast is a stock website which deals specifically with the needs of Architects and Illustrators who require good quality images of people for their creative work.

Please visit the site which I hope will be of interest to you.

All images are hi resolution TIFF files, all available for instant purchase and download.

I appreciate that there are a number of sites offering some small selections of images for free, but for the serious practitioner, our photos provide a host of different styles, scenarios and ethnicities which can add real diversity and interest to your crowd scenes, street scenes and interior hero images.

Thanks for taking time to read this.

James Lynch

www.thedigitalcast.com

http://skalgubbar.se/ is a website setup by Teodor Javanaud Emdén. He is an architecture student currently doing his masters in Göteborg, Sweden and in Lyon, France. After being frustrated with the availability of high-quality people to insert as scale figures, he decided to photograph his friends and make all of the images FREE. 

www.flyingarchitecture.com

www.immediateentourage.com

here's another awesome source:

http://www.architecturepeople.com/

check this site for cutout trees

https://www.cutout-trees.com/c...

Bring your rendering to life with: http://architecturepeople.com/