Hello!
Because a lot of people stay asking for good reaslitic clothes, no barbiedoll-shining hair etc....I decided to make a topic where EVERYONE can post links to a lot cc-sites, from furniture to hairstyles.
Just post links, I will add them to the list. (Also put a little description, like 'Maxis-match cc hair' or 'female clothes')
Of course, I already have a few links:
'Big' sites:
http://mysims3blog.blogspot.be/
http://www.thesimsresource.com/
http://modthesims.info/
http://www.sims3updates.net/
http://sunnyccfinds.tumblr.com/
http://simplykitabccfinds.tumblr.com/
http://sweetsimsccfinds.tumblr.com/
http://sssvitlans.tumblr.com/
Male clothes:
http://shokoninio.tumblr.com/
http://peacemaker-ic.tumblr.com/
http://blog.naver.com/PostThumbnailList.nhn?blogId=jinhee_a&categoryNo=77&parentCategoryNo=77&skinType=&skinId=&from=menu&userSelectMenu=true
http://sakurasims.sakura.ne.jp/category/clothing/male-young-adult/page/4
http://www.poppysims.com/
Female clothes:
(and some male)
http://sentate.co.uk/home.html
http://acecreators.blogspot.be/search/label/clothes
(Also hairstyles, poses, make-up and accessoires. See other categories)
Different cc-creators put their stuff on this site.
Here are some sites from those creators:
http://julianascorner.blogspot.be/
http://anubis360.blogspot.be/
http://elexissims.tumblr.com/
http://jockersims.blogspot.com.br/search/label/thesims3
Some of them also have their place on MTS. That's everything I found. Otherwise, take a look at 'downloads by creator' on ace creators.
http://simplicaz.tumblr.com/(Female clothes and shoes)
http://pickypikachu.blogspot.be/search/label/clothing(also hair and poses, see other categories)
http://www.poppysims.com/index.html
http://lookbook-sims.tumblr.com/(Reblogs lookbooks, useful for finding clothes.)
http://pixicat.tumblr.com/(Particularly shoes)
http://blog.naver.com/PostThumbnailList.nhn?blogId=jinhee_a&categoryNo=77&parentCategoryNo=77&skinType=&skinId=&from=menu&userSelectMenu=true
http://sakurasims.sakura.ne.jp/category/clothing/female-young-adult/page/3
http://www.poppysims.com/
http://buckleysims.tumblr.com/downloads ---> mainly pregnancy clothes
http://mvenger.wix.com/walkininfected
https://www.thesimsresource.com/artists/sims2fanbg/downloads/browse/category/sims3/skipsetitems/1/
Kids' clothes:
http://acecreators.blogspot.be/
http://chisamidream.wix.com/homegrown#!children/t7evn
Make-up and skins:
http://acecreators.blogspot.be/search/label/makeup
http://kewai-dou.com/the-sims-3/
http://kurasoberina.tumblr.com/tagged/downloads
http://blog.sina.com.cn/ephemera69
http://andromedasims.tumblr.com/termsofuse
http://pralinesims.blogspot.co.uk/p/skins.html
http://sakurasims.sakura.ne.jp/downloads-top
http://i-like-teh-sims.tumblr.com/tagged/download ---> gor.ge.ous. scars
http://sk-sims.tumblr.com/tagged/downloads
http://xilmakesthings.tumblr.com/tagged/skin
http://mvenger.wix.com/walkininfected
Hairstyles and retextures:
http://pickypikachu.blogspot.be/search/label/hair(also clothes and poses, see other categories)
http://acecreators.blogspot.be/search/label/hair
http://paint-stroke.blogspot.be/(only retextures)
http://lapizrazuli.blogspot.be/(male hairstyles)
http://kewai-dou.com/the-sims-3/
http://kijiko-catfood.com/category/the-sims3/
http://traelia.blogspot.be/p/hair.html (Just a few)
http://simshairs.tumblr.com/
http://julykapo.tumblr.com/tagged/retextures
http://beaverhausenx.tumblr.com/tagged/custom-content
http://andromedasims.tumblr.com/termsofuse
http://buckleysims.tumblr.com/downloads
http://i-like-teh-sims.tumblr.com/tagged/download
http://inkwisteria.tumblr.com/ (toddler hairstyles)
http://kewai-dou.com/the-sims-3/
http://kijiko-catfood.com/category/the-sims3/
http://blog.naver.com/PostThumbnailList.nhn?blogId=jinhee_a&categoryNo=77&parentCategoryNo=77&skinType=&skinId=&from=menu&userSelectMenu=true
http://xilmakesthings.tumblr.com/tagged/hair
http://curlysim.tumblr.com/tagged/male(Curly/afro etc. cc hair finds)
http://www.newseasims.com/
Accessoires:
http://acecreators.blogspot.be/search/label/accessories
Objects:
http://acecreators.blogspot.be/search/label/objects
http://kewai-dou.com/the-sims-3/
http://aroundthesims3.com/index.html
http://thesimsresource.com/artists/Lulu265/downloads/browse/category/sims3/skipsetitems/1
http://gelinadownloads.tumblr.com/
http://www.poppysims.com/
http://lunasimslulamai.jimdo.com/fantasy-forest/
http://chisamidream.wix.com/homegrown#!blank/ullby
http://www.freshprincecreations.com/ts3vehiclespg.htm(cars)
https://www.thesimsresource.com/artists/Lulu265/downloads/browse/category/sims3/skipsetitems/1

Decoration:
http://pixeljackpot.tumblr.com/
http://simplicaz.tumblr.com/
http://simplicaz.tumblr.com/
http://aroundthesims3.com/index.html
http://you-lust.tumblr.com/
http://lunasimslulamai.jimdo.com/fantasy-forest/
http://chisamidream.wix.com/homegrown#!blank/ullby
http://justsims3art.blogspot.be/
http://mvenger.wix.com/walkininfected
Patterns:
http://pixeljackpot.tumblr.com/
http://simplicaz.tumblr.com/
http://paperfriendd.tumblr.com/tagged/patterns
http://www.thesims3.com/userExchange.html?assetType=material&persona=TnT_Terry&position=0&sortField=download_count&sortOrder=desc
http://sakurasims.sakura.ne.jp/downloads-top
http://www.poppysims.com/
Build stuff:
http://pixeljackpot.tumblr.com/(Also other things, see other categories)
http://simplicaz.tumblr.com/
http://gelinadownloads.tumblr.com/
default skins/eyes
http://brntwaffles.tumblr.com/ (Also non-default skins and eyes, worlds and mods)
http://traelia.blogspot.be/p/makeup-and-genetics.html(Cats and dogs eyes defaults)
Poses
http://acecreators.blogspot.be/search/label/poses
http://pickypikachu.blogspot.be/search/label/poses
http://mysims3poses.blogspot.co.uk/(A lot of poses from different creators)
http://traelia.blogspot.be/p/poses.html
http://blog.naver.com/PostThumbnailList.nhn?blogId=jinhee_a&categoryNo=77&parentCategoryNo=77&skinType=&skinId=&from=menu&userSelectMenu=true
Worlds & houses
http://www.poppysims.com/decorativepage1.html
http://www.poppysims.com/worldspage1.html
http://brntwaffles.tumblr.com/
http://nilxisdesigns.blogspot.be/
http://gelinadownloads.tumblr.com/
http://www.mysimrealty.com/
http://sakurasims.sakura.ne.jp/downloads-top
http://thesimscatalog.com/product-category/the-sims-3/the-sims-3-worlds/
Some weird fantasy and historic stuff
http://modthesims.info/showthread.php?t=550593&highlight=medieval+clothes
http://murfeelee.tumblr.com/
http://ninthcirclets3cc.tumblr.com/archive
http://fancifults3cc.tumblr.com/archive
http://scifits3ccblog.tumblr.com/archive
If you mean a certain creator from TSR or MTS, post a link to their page on those sites or their blog/tumblr. (just google the same name as you see on MTS/TSR)