diff --git a/followertxt.py b/followertxt.py
index 7059b67..4e8deaa 100755
--- a/followertxt.py
+++ b/followertxt.py
@@ -3,16 +3,6 @@
 import twitools, setuptools
 import os, time, tweepy
 
-def getFollowerIDs(two=twitools.twObject()):
- ''' Returns 5,000 follower IDs at most '''
- return two.api.followers_ids(screen_name=twitools.twObject().whoami())
-
-def getNamesByIDs(fids=getFollowerIDs(), two=twitools.twObject()):
-  for page in setuptools.paginate(fids, 100):
-   followers = two.api.lookup_users(user_ids=page)
-   for follower in followers:
-    yield follower.screen_name
-
 def getOutDir(dirname="followers"):
  if not os.path.isdir(dirname):
   os.mkdir(dirname)
@@ -23,7 +13,7 @@ def getOutFile(dirname="followers"):
 
 def writeOutFile(outfile=getOutFile()):
  with open(getOutFile(), 'a') as f:
-  for follower in getNamesByIDs(getFollowerIDs()):
+  for follower in twitools.getNamesByIDs(twitools.getFollowerIDs()):
    f.write(follower + "\n")
 
 if __name__ == "__main__":
diff --git a/setup.py b/setup.py
index bf7cd21..f02b276 100755
--- a/setup.py
+++ b/setup.py
@@ -51,6 +51,8 @@ else:
 if not db.isInitialized():
  db.executeQuery("CREATE TABLE tweets(`tweet_id` INTEGER NOT NULL, `in_reply_to_status_id` TEXT, `in_reply_to_user_id` TEXT, `timestamp` TEXT, `source` TEXT, `text` TEXT, `retweeted_status_id` TEXT, `retweeted_status_user_id` TEXT, `retweeted_status_timestamp` TEXT, `expanded_urls` TEXT, PRIMARY KEY(tweet_id));")
  db.executeQuery("CREATE TABLE messages(`id` INTEGER NOT NULL, `text` TEXT, `sender_id` INTEGER, `recipient_id` INTEGER, `created_at` TEXT, PRIMARY KEY(id));")
+ db.executeQuery("CREATE TABLE followers(`id` INTEGER NOT NULL, `since` TEXT, `until` TEXT);")
+ db.executeQuery("CREATE TABLE following(`id` INTEGER NOT NULL, `since` TEXT, `until` TEXT);")
  db.commit()
 
 db.closeConnection()
diff --git a/twitools/__init__.py b/twitools/__init__.py
index 8de5355..730d7de 100644
--- a/twitools/__init__.py
+++ b/twitools/__init__.py
@@ -18,3 +18,12 @@ class twObject:
  def whoami(self):
   return self.auth.get_username()
 
+def getFollowerIDs(two=twObject()):
+ ''' Returns 5,000 follower IDs at most '''
+ return two.api.followers_ids(screen_name=twObject().whoami())
+
+def getNamesByIDs(fids=getFollowerIDs(), two=twObject()):
+  for page in setuptools.paginate(fids, 100):
+   followers = two.api.lookup_users(user_ids=page)
+   for follower in followers:
+    yield follower.screen_name