diff --git a/core/io/streams/lines/authors.txt b/core/io/streams/lines/authors.txt
deleted file mode 100644
index 1901f27a24..0000000000
--- a/core/io/streams/lines/authors.txt
+++ /dev/null
@@ -1 +0,0 @@
-Slava Pestov
diff --git a/core/io/streams/lines/lines-docs.factor b/core/io/streams/lines/lines-docs.factor
deleted file mode 100644
index 789a060ed5..0000000000
--- a/core/io/streams/lines/lines-docs.factor
+++ /dev/null
@@ -1,17 +0,0 @@
-USING: help.markup help.syntax io strings ;
-IN: io.streams.lines
-
-ARTICLE: "io.streams.lines" "Line reader streams"
-"Line reader streams wrap an underlying stream and provide a default implementation of " { $link stream-readln } "."
-{ $subsection line-reader }
-{ $subsection <line-reader> } ;
-
-ABOUT: "io.streams.lines"
-
-HELP: line-reader
-{ $class-description "An input stream which delegates to an underlying stream while providing an implementation of the " { $link stream-readln } " word in terms of the underlying stream's " { $link stream-read-until } ". Line readers are created by calling " { $link <line-reader> } "." } ;
-
-HELP: <line-reader>
-{ $values { "stream" "an input stream" } { "new-stream" "an input stream" } }
-{ $description "Creates a new " { $link line-reader } "." }
-{ $notes "Stream constructors should call this word to wrap streams that do not natively support reading lines. Unix (" { $snippet "\\n" } "), Windows (" { $snippet "\\r\\n" } ") and MacOS (" { $snippet "\\r" } ") line endings are supported." } ;
diff --git a/core/io/streams/lines/lines-tests.factor b/core/io/streams/lines/lines-tests.factor
deleted file mode 100755
index e3a4fe886a..0000000000
--- a/core/io/streams/lines/lines-tests.factor
+++ /dev/null
@@ -1,58 +0,0 @@
-USING: io.streams.lines io.files io.streams.string io
-tools.test kernel io.encodings.ascii ;
-IN: temporary
-
-: <resource-reader> ( resource -- stream )
-    resource-path ascii <file-reader> ;
-    
-[ { } ]
-[ "/core/io/test/empty-file.txt" <resource-reader> lines ]
-unit-test
-
-: lines-test ( stream -- line1 line2 )
-    [ readln readln ] with-stream ;
-
-[
-    "This is a line."
-    "This is another line."
-] [
-    "/core/io/test/windows-eol.txt" <resource-reader> lines-test
-] unit-test
-
-[
-    "This is a line."
-    "This is another line."
-] [
-    "/core/io/test/mac-os-eol.txt" <resource-reader> lines-test
-] unit-test
-
-[
-    "This is a line."
-    "This is another line."
-] [
-    "/core/io/test/unix-eol.txt" <resource-reader> lines-test
-] unit-test
-
-[
-    "1234"
-] [
-     "Hello world\r\n1234" <string-reader>
-     dup stream-readln drop
-     4 swap stream-read
-] unit-test
-
-[
-    "1234"
-] [
-     "Hello world\r\n1234" <string-reader>
-     dup stream-readln drop
-     4 swap stream-read-partial
-] unit-test
-
-[
-    CHAR: 1
-] [
-     "Hello world\r\n1234" <string-reader>
-     dup stream-readln drop
-     stream-read1
-] unit-test
diff --git a/core/io/streams/lines/lines.factor b/core/io/streams/lines/lines.factor
deleted file mode 100755
index 84ff272d69..0000000000
--- a/core/io/streams/lines/lines.factor
+++ /dev/null
@@ -1,7 +0,0 @@
-! Copyright (C) 2004, 2007 Slava Pestov.
-! See http://factorcode.org/license.txt for BSD license.
-IN: io.streams.lines
-! USING: io.encodings.latin1 io.encodings ;
-
-! : <line-reader> ( stream -- new-stream )
-!     latin1 <decoded> ;
diff --git a/core/io/streams/lines/summary.txt b/core/io/streams/lines/summary.txt
deleted file mode 100644
index 8c0c096f0b..0000000000
--- a/core/io/streams/lines/summary.txt
+++ /dev/null
@@ -1 +0,0 @@
-Read lines of text from a character-oriented stream
diff --git a/extra/channels/sniffer/backend/backend.factor b/unmaintained/sniffer/channels/backend/backend.factor
similarity index 100%
rename from extra/channels/sniffer/backend/backend.factor
rename to unmaintained/sniffer/channels/backend/backend.factor
diff --git a/extra/channels/sniffer/bsd/bsd.factor b/unmaintained/sniffer/channels/bsd/bsd.factor
similarity index 100%
rename from extra/channels/sniffer/bsd/bsd.factor
rename to unmaintained/sniffer/channels/bsd/bsd.factor
diff --git a/extra/channels/sniffer/sniffer.factor b/unmaintained/sniffer/channels/sniffer.factor
similarity index 100%
rename from extra/channels/sniffer/sniffer.factor
rename to unmaintained/sniffer/channels/sniffer.factor
diff --git a/extra/io/sniffer/authors.txt b/unmaintained/sniffer/io/authors.txt
similarity index 100%
rename from extra/io/sniffer/authors.txt
rename to unmaintained/sniffer/io/authors.txt
diff --git a/extra/io/sniffer/backend/authors.txt b/unmaintained/sniffer/io/backend/authors.txt
similarity index 100%
rename from extra/io/sniffer/backend/authors.txt
rename to unmaintained/sniffer/io/backend/authors.txt
diff --git a/extra/io/sniffer/backend/backend.factor b/unmaintained/sniffer/io/backend/backend.factor
similarity index 100%
rename from extra/io/sniffer/backend/backend.factor
rename to unmaintained/sniffer/io/backend/backend.factor
diff --git a/extra/io/sniffer/bsd/authors.txt b/unmaintained/sniffer/io/bsd/authors.txt
similarity index 100%
rename from extra/io/sniffer/bsd/authors.txt
rename to unmaintained/sniffer/io/bsd/authors.txt
diff --git a/extra/io/sniffer/bsd/bsd.factor b/unmaintained/sniffer/io/bsd/bsd.factor
similarity index 97%
rename from extra/io/sniffer/bsd/bsd.factor
rename to unmaintained/sniffer/io/bsd/bsd.factor
index 66336425a1..2a8a8e20c0 100644
--- a/extra/io/sniffer/bsd/bsd.factor
+++ b/unmaintained/sniffer/io/bsd/bsd.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007 Elie Chaftari, Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: alien.c-types alien.syntax destructors hexdump io
-io.buffers io.nonblocking io.sockets io.streams.lines
+io.buffers io.nonblocking io.sockets
 io.unix.backend io.unix.files kernel libc locals math qualified
 sequences io.sniffer.backend ;
 QUALIFIED: unix
diff --git a/extra/io/sniffer/filter/authors.txt b/unmaintained/sniffer/io/filter/authors.txt
similarity index 100%
rename from extra/io/sniffer/filter/authors.txt
rename to unmaintained/sniffer/io/filter/authors.txt
diff --git a/extra/io/sniffer/filter/backend/authors.txt b/unmaintained/sniffer/io/filter/backend/authors.txt
similarity index 100%
rename from extra/io/sniffer/filter/backend/authors.txt
rename to unmaintained/sniffer/io/filter/backend/authors.txt
diff --git a/extra/io/sniffer/filter/backend/backend.factor b/unmaintained/sniffer/io/filter/backend/backend.factor
similarity index 100%
rename from extra/io/sniffer/filter/backend/backend.factor
rename to unmaintained/sniffer/io/filter/backend/backend.factor
diff --git a/extra/io/sniffer/filter/bsd/authors.txt b/unmaintained/sniffer/io/filter/bsd/authors.txt
similarity index 100%
rename from extra/io/sniffer/filter/bsd/authors.txt
rename to unmaintained/sniffer/io/filter/bsd/authors.txt
diff --git a/extra/io/sniffer/filter/bsd/bsd.factor b/unmaintained/sniffer/io/filter/bsd/bsd.factor
similarity index 100%
rename from extra/io/sniffer/filter/bsd/bsd.factor
rename to unmaintained/sniffer/io/filter/bsd/bsd.factor
diff --git a/extra/io/sniffer/filter/filter.factor b/unmaintained/sniffer/io/filter/filter.factor
similarity index 100%
rename from extra/io/sniffer/filter/filter.factor
rename to unmaintained/sniffer/io/filter/filter.factor
diff --git a/extra/io/sniffer/sniffer.factor b/unmaintained/sniffer/io/sniffer.factor
similarity index 100%
rename from extra/io/sniffer/sniffer.factor
rename to unmaintained/sniffer/io/sniffer.factor