diff --git a/monitor/item.go b/monitor/item.go
index b34ff31..ee0024d 100644
--- a/monitor/item.go
+++ b/monitor/item.go
@@ -1,8 +1,6 @@
 package monitor
 
 import (
-	"bytes"
-	"encoding/gob"
 	"local/rssmon3/config"
 	"log"
 	"time"
@@ -65,19 +63,16 @@ func (i *Item) getInterval() (time.Duration, error) {
 	if err != nil {
 		return forever, err
 	}
-	buff := bytes.NewBuffer(b)
-	dec := gob.NewDecoder(buff)
-	err = dec.Decode(&t)
+	err = config.Decode(b, &t)
 	return t, err
 }
 
 func (i *Item) setInterval(t time.Duration) error {
-	buff := bytes.NewBuffer(nil)
-	enc := gob.NewEncoder(buff)
-	if err := enc.Encode(t); err != nil {
+	b, err := config.Encode(t)
+	if err != nil {
 		return err
 	}
-	if err := config.Values().DB.Set(i.Key, buff.Bytes(), nsInterval); err != nil {
+	if err := config.Values().DB.Set(i.Key, b, nsInterval); err != nil {
 		return err
 	}
 	return nil
@@ -98,29 +93,21 @@ func (i *Item) Mark() {
 }
 
 func (i *Item) setLast(t time.Time) error {
-	buff := bytes.NewBuffer(nil)
-	enc := gob.NewEncoder(buff)
-	if err := enc.Encode(t); err != nil {
+	b, err := config.Encode(t)
+	if err != nil {
 		return err
 	}
-	if err := config.Values().DB.Set(i.Key, buff.Bytes(), nsLast); err != nil {
-		return err
-	}
-	return nil
+	return config.Values().DB.Set(i.Key, b, nsLast)
 }
 
 func (i *Item) getLast() (time.Time, error) {
-	t := time.Now()
+	t := never
 	b, err := config.Values().DB.Get(i.Key, nsLast)
 	if err != nil {
 		return never, err
 	}
-	buff := bytes.NewBuffer(b)
-	dec := gob.NewDecoder(buff)
-	if err := dec.Decode(&t); err != nil {
-		return never, err
-	}
-	return t, nil
+	err = config.Decode(b, &t)
+	return t, err
 }
 
 func (i *Item) Encode() ([]byte, error) {
diff --git a/rss/feed.go b/rss/feed.go
index b063610..e934dbd 100644
--- a/rss/feed.go
+++ b/rss/feed.go
@@ -23,25 +23,8 @@ type Feed struct {
 	Tags          []string
 }
 
-func TaggedFeeds(tag string) ([]*Feed, error) {
-	db := config.Values().DB
-	feedNames, err := db.List([]string{nsFeeds})
-	if err != nil {
-		return nil, err
-	}
-	results := []*Feed{}
-	for _, feedName := range feedNames {
-		f := newFeed(feedName)
-		if err := f.Load(); err != nil {
-			return nil, err
-		}
-		for i := range f.Tags {
-			if f.Tags[i] == tag {
-				results = append(results, f)
-			}
-		}
-	}
-	return results, nil
+func SubmitFeed(f *Feed) error {
+	return f.save()
 }
 
 func newFeed(key string) *Feed {
diff --git a/rss/feed_test.go b/rss/feed_test.go
index 90544c5..ae0c6ec 100644
--- a/rss/feed_test.go
+++ b/rss/feed_test.go
@@ -177,29 +177,3 @@ func TestRSSFeedPull(t *testing.T) {
 		t.Fatal(i)
 	}
 }
-
-func TestRSSTaggedFeeds(t *testing.T) {
-	initRSSFeed()
-
-	for _, k := range []string{"a", "b"} {
-		f := newFeed(k)
-		f.Tags = []string{"TAG"}
-		if err := f.save(); err != nil {
-			t.Fatal(err)
-		}
-	}
-
-	if feeds, err := TaggedFeeds("NOTTAG"); err != nil {
-		t.Fatal(err)
-	} else if len(feeds) != 0 {
-		t.Fatal(len(feeds))
-	}
-
-	if feeds, err := TaggedFeeds("TAG"); err != nil {
-		t.Fatal(err)
-	} else if len(feeds) != 2 {
-		t.Fatal(len(feeds))
-	} else {
-		t.Logf("%v", feeds)
-	}
-}
diff --git a/rss/serialize.go b/rss/serialize.go
new file mode 100644
index 0000000..fe0323c
--- /dev/null
+++ b/rss/serialize.go
@@ -0,0 +1,52 @@
+package rss
+
+import (
+	"io"
+	"local/rssmon3/config"
+
+	"github.com/gorilla/feeds"
+)
+
+func TaggedFeeds(tag string) ([]*Feed, error) {
+	db := config.Values().DB
+	feedNames, err := db.List([]string{nsFeeds})
+	if err != nil {
+		return nil, err
+	}
+	results := []*Feed{}
+	for _, feedName := range feedNames {
+		f := newFeed(feedName)
+		if err := f.Load(); err != nil {
+			return nil, err
+		}
+		for i := range f.Tags {
+			if f.Tags[i] == tag {
+				results = append(results, f)
+			}
+		}
+	}
+	return results, nil
+}
+
+func WriteFeed(w io.Writer, tag string, items []*Item) error {
+	feed := &feeds.Feed{
+		Title:       tag,
+		Link:        &feeds.Link{},
+		Description: tag,
+		Items:       make([]*feeds.Item, len(items)),
+	}
+	for i, item := range items {
+		feed.Items[i] = &feeds.Item{
+			Title:       item.Title,
+			Link:        &feeds.Link{Href: item.Link},
+			Description: item.Content,
+			Created:     item.TS,
+		}
+	}
+	s, err := feed.ToRss()
+	if err != nil {
+		return err
+	}
+	w.Write([]byte(s))
+	return nil
+}
diff --git a/rss/serialize_test.go b/rss/serialize_test.go
new file mode 100644
index 0000000..43e7085
--- /dev/null
+++ b/rss/serialize_test.go
@@ -0,0 +1,71 @@
+package rss
+
+import (
+	"bytes"
+	"log"
+	"os"
+	"testing"
+)
+
+func initRSSSerialize() {
+	initRSSFeed()
+}
+
+func TestRSSTaggedFeeds(t *testing.T) {
+	initRSSFeed()
+
+	for _, k := range []string{"a", "b"} {
+		f := newFeed(k)
+		f.Tags = []string{"TAG"}
+		if err := f.save(); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	if feeds, err := TaggedFeeds("NOTTAG"); err != nil {
+		t.Fatal(err)
+	} else if len(feeds) != 0 {
+		t.Fatal(len(feeds))
+	}
+
+	if feeds, err := TaggedFeeds("TAG"); err != nil {
+		t.Fatal(err)
+	} else if len(feeds) != 2 {
+		t.Fatal(len(feeds))
+	} else {
+		t.Logf("%v", feeds)
+	}
+}
+
+func TestRSSWriteFeed(t *testing.T) {
+	initRSSFeed()
+	s := mockRSS()
+	defer s.Close()
+
+	f := newFeed("key")
+	f.TitleFilter = "5[0-9]{2}"
+	f.ContentFilter = "b"
+	f.Tags = []string{"c"}
+	f.URL = s.URL
+
+	log.SetOutput(bytes.NewBuffer(nil))
+	defer log.SetOutput(os.Stderr)
+	if err := f.pull(); err != nil {
+		t.Fatal(err)
+	}
+	log.SetOutput(os.Stderr)
+
+	items, err := f.Items(5)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) != 5 {
+		t.Fatal(len(items))
+	}
+
+	buff := bytes.NewBuffer(nil)
+	if err := WriteFeed(buff, "c", items); err != nil {
+		t.Fatal(err)
+	}
+	t.Logf("%s", buff.Bytes())
+}
diff --git a/server/.routes.go.swp b/server/.routes.go.swp
new file mode 100644
index 0000000..eea7618
Binary files /dev/null and b/server/.routes.go.swp differ
diff --git a/server/routes.go b/server/routes.go
index a5f43f4..e1e2113 100644
--- a/server/routes.go
+++ b/server/routes.go
@@ -1,12 +1,16 @@
 package server
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"local/router"
+	"local/rssmon3/monitor"
+	"local/rssmon3/rss"
 	"log"
 	"net/http"
 	"regexp"
+	"time"
 )
 
 func (s *Server) Routes() error {
@@ -15,6 +19,7 @@ func (s *Server) Routes() error {
 		handler http.HandlerFunc
 	}{
 		{path: fmt.Sprintf("/api/tag/%s", router.Wildcard), handler: s.tag},
+		{path: fmt.Sprintf("/api/feed"), handler: s.feed},
 	}
 	for _, handle := range handles {
 		if err := s.router.Add(handle.path, handle.handler); err != nil {
@@ -47,6 +52,57 @@ func (s *Server) tag(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	tag := regexp.MustCompile("^.*\\/").ReplaceAllString(r.URL.Path, "")
-	log.Println(tag)
+	feeds, err := rss.TaggedFeeds(tag)
+	if err != nil {
+		s.error(w, r, err)
+		return
+	}
+	items := []*rss.Item{}
+	for _, feed := range feeds {
+		feedItems, err := feed.Items(20)
+		if err != nil {
+			s.error(w, r, err)
+		}
+		items = append(items, feedItems...)
+	}
+	if err := rss.WriteFeed(w, tag, items); err != nil {
+		s.error(w, r, err)
+		return
+	}
+}
+
+func (s *Server) feed(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "PUT" {
+		s.notFound(w, r)
+		return
+	}
+	var putFeed struct {
+		URL           string        `json:"url"`
+		Interval      time.Duration `json:"refresh"`
+		TitleFilter   string        `json:"items"`
+		ContentFilter string        `json:"content"`
+		Tags          []string      `json:"tags"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&putFeed); err != nil {
+		s.userError(w, r, err)
+		return
+	}
+	f := &rss.Feed{
+		Key:           putFeed.URL,
+		URL:           putFeed.URL,
+		TitleFilter:   putFeed.TitleFilter,
+		ContentFilter: putFeed.ContentFilter,
+		Tags:          putFeed.Tags,
+	}
+	if err := rss.SubmitFeed(f); err != nil {
+		s.error(w, r, err)
+		return
+	}
+	i, err := monitor.NewItem(f.Key, putFeed.Interval)
+	if err != nil {
+		s.error(w, r, err)
+		return
+	}
+	log.Println(i)
 	s.error(w, r, errors.New("not impl"))
 }