Boston Lisp Meetings are held on a monthly basis, usually at 6pm on the last Monday of the month. The evening begins with two 5-minute "lightning talks", continues with a main speaker for an hour or so, and finishes with a free buffet. Topics cover a range of issues that may interest the greater lisp community (including Common Lisp, Scheme, Clojure, or any other programmable programming system).

We encourage both veterans and newbies to come and meet, maybe becoming collaborators, mentors, or disciples on some Lisp project. Hobbyists, academics, and professionals are invited to socialize and chill out with a generally friendly group. There is no cost to attend.

For the latest information, always check the official boston-lisp-meeting blog.


Meetings are normally held at MIT room 34-401b [Google]. This is the second classroom from the elevator on the 4th floor of Building 34; the address is 50 Vassar St., Cambridge, MA. Many thanks to Alexey Radul for reserving the room and to MIT for welcoming us.

Some meetings are held at NEU room WVH 366 [Google]. Again, many thanks to Eli Barzilay and to Northeastern University.


ITA Software, a fine employer of Lisp programmers, kindly purchases a buffet for most Boston Lisp meetings. This is free to all who attend. To help with planning, please email boston-lisp-meeting-register at common-lisp.net to let us know you are coming, and tell us of food taboos you have. We don't send any acknowledgement unless requested; more importantly, we keep your identity and address confidential and won't communicate any such information to anyone, not even to our sponsors.

:next-meeting Monday, December 14th 2009 at 1800 (6pm) at NEU WVH 366

Faré's announcement

Sam Tobin-Hochstadt will present Typed Scheme.

Typed Scheme is a system for incrementally porting untyped PLT Scheme programs to a typed language. The type system is designed to automatically accommodate typical Scheme idioms, and includes several novel features to support this. It also offers sound and automatic interoperability with untyped code. It has been used in real applications and on thousands of lines of existing Scheme code.

Sam Tobin-Hochstadt is a postdoc at Northeastern University, working for Matthias Felleisen. He is investigating the integration of typed and untyped languages, with a focus on Scheme and JavaScript. As a graduate student, he developed Typed Scheme, which he continues to maintain. He is currently supported by a grant from the Mozilla Corporation.