Yesterday I threw out a tweet about 125 twitter chats worth checking out on Google Docs. I thought I might condense it a bit and focus not only on Tweetchats that I was familiar with, but also those that would benefit the Social Media, Marketing and PR folks out there, and which also had solid participation as well. If I have left any out, please drop me a line and include it in the comments section.

1) Hashtagsocialmedia-#socialmedia Of course I’m partial to the one I co-founded with Jason Breed Advancing the Business of Social Media every Tues noon EST. New topics & new industry thought leaders and A-listers host the tweetchats. Great discussions. all archived and easily searchable

2)#4change is a monthly tweetchat on how social media is helping to create change

3) #b2bchat is a weekly conversation for B2B marketers; Thursdays 8 pm Eastern.

4) #Blogchat is a chat on Sunday nights from 8-9pm CT that was started by @MackCollier to discuss blogs and best practices.

5) #Brandchat is a discussion between experts, strategists, and those interested in learning more about personal branding and managing their personal brand.

6) #Hcsm The Health Care Communication & Social Media community hosts a weekly Twitter conversation about communication and marketing practices by Health Care organizations, including use of social media

7) #Innochat A Tweetchat on innovation

8. #Journchat Conversations between journalists, bloggers and public relations folks started by Sarah Evans

9) #Kaizenblog Discusses using kaizen in *business strategy* Started by Valeria Maltoni

10) #pr20chat PR 2.0 chat for conversations about PR related issues and SM implications, started by Beth Harte

11) #SEO411 Weekly chat to collaborate with colleagues and other marketers about their questions and ideas about SEO.

12) #SMCEDU Discussions about Social Media / Higher Education

13) #Socentchat A monthly discussion on social entrepreneurship, focusing on a particular topic or field each month, eg. Mobile Innovation; Fostering Soc Ent at universities; Support Women; eHealth; etc.

14) #Socpharm Weekly chat on pharmaceutical marketing and social media.

15) #Solopr Open discussions that serve as a companion to the SoloPRpro.com blog, designed for independent PR and MarCom pros – and those who’d like to be. Active hashtag throughout the week, with chats taking place on Wednesdays at 1 p.m. ET, Started and run by Kellye Crane

16) #TNL TNL is TalentNet Live. the #1 monthly hashtag chat for recruiters on Twitter that takes place the last Wednesday of each month at 9pm Eastern at #TNL. Login at RecruitingBlogs.com

17) #U30pro The chat that focuses on issues and trends surrounding young professionals.  All ages welcome and encouraged to join.