Home:   

http://www.sos.state.tx.us/

Corporations:   

Online Search:   

http://ecpa.cpa.state.tx.us/coa/coaStart.html (franchise tax records)

http://www.sos.state.tx.us/corp/sosda/index.shtml
(Not Internet access; provides information to set up direct modem access)

Download Forms:   

 http://www.sos.state.tx.us/corp/business.shtml