I've been collecting links to various resources useful in the field of architectural rendering and visualisation and I'd like to share them with the community. There are quite a few on my list as it has been compiled over some years.
These are content related: cut out people and objects, vegetation etc:
http://www.gobotree.com/
http://xoio.de/en/
http://skalgubbar.se/
http://www.immediateentourage.com/
http://www.mrcutout.com/index.php/people-cutouts
http://visualizingarchitecture.com/favorite-architectural-cutout-and-texture-resources/
http://texturer.com/
https://placeit.net/c/people
http://www.viz-people.com/
http://vyonyx.com/cutouts/
http://www.nonscandinavia.com/
http://www.escalalatina.com/
http://www.cutoutlife.com/
http://skalgubbrasil.tumblr.com/
These are tutorials and example specific to architectural presentations:
http://visualizingarchitecture.com/no-render-quick-collage/
http://vyonyx.com/tutorials/
http://www.arqui9.com/
https://www.behance.net/arqui9
http://www.archdaily.com/645270/architecture-software-tutorials-part-2-what-we-heard-from-you
http://www.ccc.umontreal.ca/fiche_concours.php?lang=fr&cId=207
http://www.worth1000.com/tutorials/163772/water-reflections-using-displace-filter
https://visualizingarchitecture.com/tutorials/
http://landarchs.com/beyond-basics-10-photoshop-hacks-advanced-photoshop-skills/
http://landarchs.com/10-best-photoshop-tutorials-youtube-landscape-architects/
http://visualizingarchitecture.tumblr.com/
And these are more generic stock resources:
http://www.cgtextures.com/
http://cgtextures.com/
http://compfight.com/
http://everystockphoto.com/
http://obeygiant.com/archives/
http://www.premiumpsd.com/#_
http://www.vectorstock.com/
http://www.123rf.com/
http://www.veer.com/
http://subtlepatterns.com/
http://www.elsewhere.org/pomo/
http://www.thomasnet.com/cadmodels.html?WT.mc_t=blg&WT.mc_n=blg1107&channel=email
http://medialoot.com/
http://www.sketchuptexture.com/p/bricks-section.html
http://www.texturepilot.com/
http://texturelib.com/
http://nos.twnsnd.co/
http://www.gratisography.com/
http://graphicburger.com/
http://nobacks.com/