Tier 1 all unique

Did you try google or the warrior search function?

.. Top 100 Web 2.0 sites list! | Koporc's webmaster resources

I personally like tumblr

The power of search

Here are some useful ones 2013.

2itb.com – PR4, dofollow
Angelfire.com – PR7, dofollow
Areavoices.com – PR6, dofollow, accepts XMLRPC
Bcz.com – PR3
Blinkweb.com – PR5, accepts XMLRPC, dofollow
Blog.com – PR6, accepts XMLRPC, dofollow
Blogetery.com – PR5, dofollow
Blogger.com – PR8, accepts post by email, dofollow
Blogge.rs – PR4,dofollow
Bloghi.com – PR4, dofollow
Blogpico.com – PR2, dofollow
Blogreaction.com – PR4, dofollow
Blogster.com – PR3, dofollow
Blurty.com – PR4, dofollow
Devhub.com – PR5, dofollow
Dotlekit.com – PR6, dofollow
Evood.vom – PR2, dofollow
Edublog.org – PR, dofollow, filtered content
Fc2.com – PR6, dofollow, filtered content, accepts XMLRPC
Flixya.com – PR5, dofollow
Gather.com – PR6, dofollow
Getjealous.com – PR5, dofollow
Hubpages.com – PR6, nofollow
Iblog.at – PR3, dofollow
Inube.com – PR4, dofollow
Insanejournal.com – PR5, dofollow
Lifeyo.com – PR4, dofollow
Livejournal.com – PR8, nofollow, accepts post by email, accepts XMLRPC
Livelogcity.com – PR5, dofollow
My.opera.com – PR8, nofollow, accepts post by email
My.telegraph.co.uk – PR7, dofollow, filtered content
Myblogsite.com – PR4, dofollow
Mywapblog.com – PR4, dofollow
Mytripjournal.com – PR4, dofollow
Ohlig.com – PR5, dofollow
Offucekive.com – PR7, dofollow
Posterous.com – PR7, dofollow, accepts post by email
Onsugar.com – PR6, dofollow, accepts post by email
Quizilla.teennick.com – PR6, dofollow
Reddif.com – PR7, dofollow
Shutterfly.com – PR5, dofollow
Salon.com – PR7, dofollow
Snappages.com – PR5, dofollow
Spi-blog.com – PR4, dofollow
Spyuser.com – PR,3 dofollow
Spruz.com – PR5, dofollow
Squidoo.com – PR7, dofollow, filtered content and just english
Sweetcircles.com – PR3, dofollow
Thoughts.com – PR5, nofollow
Travelblog.org – PR6, dofollow
Tripod.com – PR8, dofollow
Tumblr.com – PR8, dofollow, accepts post by email
Typepad.com – PR8, dofollow, accepts post by email
Ucoz.com – PR6, dofollow
Uwcblog.com – PR2, dofollow
Weblogplaza.com – PR3, dofollow
Webs.com – PR7, dofollow
Webspawner.com – PR6, dofollow
Weebly.com – PR8, dofollow
Wetpaint.com – PR6, nofollow
Wikidot.com – PR7, dofollow
Wikispaces.com – PR7, nofollow
WordPress.com – PR9, dofollow, accepts post by email, accepts XMLRPC
Yola.com – PR8, dofollow
Yousaytoo.com – PR4, dofollow
Xanga.com – PR6, nofollow
Zoomshare.com – PR5, dofollow