Hello all,
Soliciting donations for SudoRoom will be greatly assisted with a federal 501c(3) status. Without this classification federal tax incentives are not available to those wishing to donate or to those paying members looking to write off dues, and soliciting of donations w/o this classification is legally questionable. Additionally there is the potential for tax exemption of purchases however this will require (in addition to filing and gaining approval) an internally developed mechanism for members to benefit when making SudoRoom related purchases.  

Costs of operating a 501c(3)  depend on the amount of revenue. I assume SudoRoom is below the $2million threshold of revenues so audits will not be required. There are miscellaneous fees associated with filing yearly paperwork (all totaled less than $100/yr).  

Below are helpful links on the subject and find attached a screen capture of the current Attorney General Status (note that SudoMesh is identical) in addition to the published guide for charities, specifically the section beginning on page 46 "A Summary of Important...".  

list of filings required: http://www.hurwitassociates.com/l_s_annual_ca.php

Information on Form1023http://www.irs.gov/uac/Form-1023,-Application-for-Recognition-of-Exemption-Under-Section-501(c)(3)-of-the-Internal-Revenue-Code

rrf-1http://oag.ca.gov/sites/all/files/agweb/pdfs/charities/charitable/rrf1_form.pdf

Thank you for reading and note that I am NOT a qualified tax professional nor legal expert,
Whit3