1. When syntactic variables are compared Sali Tagliamonte; 2. Mapping syntax and the sociolinguistic monitor Jennifer Smith, Sophie Holmes-Elliott; 3. A Columbia School perspective on explanation in morphosyntactic variation Ricardo Otheguy, Naomi Lapidus Shin; 4. On the inevitability of social meaning and ideology in accounts of syntactic change: Evidence from pronoun competition in Netherlandic Dutch Stefan Grondelaers Paul van Gent , and Roeland van Hout; 5. About the predictability of social stratification of syntactic variants Leonie Cornips; 6. When variants lack semantic equivalence: Adverbial subclause word order Tanya Karoli Christensen Torben Juel Jensen; Index.