diff --git a/lib/ruby-stackoverflow/client.rb b/lib/ruby-stackoverflow/client.rb
index fc9538d..3cd6b6b 100644
--- a/lib/ruby-stackoverflow/client.rb
+++ b/lib/ruby-stackoverflow/client.rb
@@ -1,4 +1,5 @@
 require 'json'
+require 'uri'
 require 'ruby-stackoverflow/client/response_data'
 require 'ruby-stackoverflow/client/resource/resource'
 require 'ruby-stackoverflow/client/resource/user'
@@ -13,10 +14,13 @@
 require 'ruby-stackoverflow/client/resource/post'
 require 'ruby-stackoverflow/client/resource/permission'
 require 'ruby-stackoverflow/client/resource/stackoverflow_error'
+require 'ruby-stackoverflow/client/resource/search'
 require 'ruby-stackoverflow/client/user_helper'
 require 'ruby-stackoverflow/client/question_helper'
 require 'ruby-stackoverflow/client/badges_helper'
 require 'ruby-stackoverflow/client/comments_helper'
+require 'ruby-stackoverflow/client/search_helper'
+require 'ruby-stackoverflow/client/tag_helper'
 require 'ruby-stackoverflow/client/parse_options'
 
 module RubyStackoverflow
@@ -26,6 +30,8 @@ class Client
     include RubyStackoverflow::Client::QuestionHelper
     include RubyStackoverflow::Client::BadgesHelper
     include RubyStackoverflow::Client::CommentsHelper
+    include RubyStackoverflow::Client::SearchHelper
+    include RubyStackoverflow::Client::TagHelper
 
     attr_accessor :configuration
 
@@ -53,8 +59,8 @@ def parse_response(data, klass)
     def append_params_to_url(url, options)
       url = Configuration.api_url + url
       options.merge!(key_params)
-      options = options.to_a.map{|k,v|"#{k}=#{v}"}
-      url+'?'+options.join('&')
+      options = URI.encode_www_form(options)
+      url+'?'+options
     end
 
     def key_params
diff --git a/lib/ruby-stackoverflow/client/parse_options.rb b/lib/ruby-stackoverflow/client/parse_options.rb
index 6ee61cf..0b6ae99 100644
--- a/lib/ruby-stackoverflow/client/parse_options.rb
+++ b/lib/ruby-stackoverflow/client/parse_options.rb
@@ -14,7 +14,7 @@ def parse_options(options = {})
           else
             options[k] = v
           end
-        end 
+        end
       end
 
       def join_ids(ids)
diff --git a/lib/ruby-stackoverflow/client/resource/question.rb b/lib/ruby-stackoverflow/client/resource/question.rb
index 0b6b6c5..e9fd195 100644
--- a/lib/ruby-stackoverflow/client/resource/question.rb
+++ b/lib/ruby-stackoverflow/client/resource/question.rb
@@ -31,15 +31,15 @@ def parse_data(data)
 
         def data_has_answer?(data)
           data.first.include?(:answer_id)
-        end 
+        end
 
         def data_has_comment?(data)
           data.first.include?(:comment_id) && !data.first.include?(:timeline_type)
-        end 
+        end
 
         def data_has_timeline?(data)
           data.first.include?(:timeline_type)
-        end 
+        end
 
         def find_or_create_question(questions, qid)
           question_array = questions.select{|q|q.question_id == qid}
@@ -47,9 +47,9 @@ def find_or_create_question(questions, qid)
         end
 
 
-        def create_question(attr_hash, questions, hash_key) 
+        def create_question(attr_hash, questions, hash_key)
           qid = attr_hash.delete(hash_key)
-          question = find_or_create_question(questions, qid) 
+          question = find_or_create_question(questions, qid)
           questions << question unless question_exists?(questions,qid)
           question
         end
diff --git a/lib/ruby-stackoverflow/client/resource/search.rb b/lib/ruby-stackoverflow/client/resource/search.rb
new file mode 100644
index 0000000..a65c685
--- /dev/null
+++ b/lib/ruby-stackoverflow/client/resource/search.rb
@@ -0,0 +1,6 @@
+module RubyStackoverflow
+  class Client
+    class Search < Resource
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/ruby-stackoverflow/client/resource/tag.rb b/lib/ruby-stackoverflow/client/resource/tag.rb
index 383bd5d..33a2d20 100644
--- a/lib/ruby-stackoverflow/client/resource/tag.rb
+++ b/lib/ruby-stackoverflow/client/resource/tag.rb
@@ -1,17 +1,6 @@
 module RubyStackoverflow
   class Client
     class Tag < Resource
-      #def initialize(attributes_hash)
-        #Tag.define_atribute_methods(attributes_hash) 
-      #end
-
-      #class << self
-        #def define_atribute_methods(attributes_hash)
-          #attributes_hash.each do|k,v|
-            #define_method(k) do v; end
-          #end
-        #end
-      #end
     end
   end
 end
diff --git a/lib/ruby-stackoverflow/client/search_helper.rb b/lib/ruby-stackoverflow/client/search_helper.rb
new file mode 100644
index 0000000..3127cea
--- /dev/null
+++ b/lib/ruby-stackoverflow/client/search_helper.rb
@@ -0,0 +1,17 @@
+module RubyStackoverflow
+  class Client
+    module SearchHelper
+
+      def similar(title, options={})
+        similar_response(title, options)
+      end
+
+      private
+
+      def similar_response(title, options={})
+        getr 'similar', 'question', options.merge(title: title)
+      end
+
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/ruby-stackoverflow/client/tag_helper.rb b/lib/ruby-stackoverflow/client/tag_helper.rb
new file mode 100644
index 0000000..204b62a
--- /dev/null
+++ b/lib/ruby-stackoverflow/client/tag_helper.rb
@@ -0,0 +1,17 @@
+module RubyStackoverflow
+  class Client
+    module TagHelper
+
+      def tags(options={})
+        tags_response(options)
+      end
+
+      private
+
+      def tags_response(options={})
+        getr 'tags/', 'tag', options
+      end
+
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/ruby-stackoverflow/client/user_helper.rb b/lib/ruby-stackoverflow/client/user_helper.rb
index e7ad5f6..8801ea3 100644
--- a/lib/ruby-stackoverflow/client/user_helper.rb
+++ b/lib/ruby-stackoverflow/client/user_helper.rb
@@ -43,7 +43,7 @@ def users_unread_notifications(id, options = {})
         url = id + '/notifications/unread'
         user_response(options, url)
       end
-      
+
       def users_with_favorites_questions(ids, options = {})
         ids = join_ids(ids)
         url = ids + '/favorites'
diff --git a/ruby-stackoverflow.gemspec b/ruby-stackoverflow.gemspec
index d52bcc1..a5cad20 100644
--- a/ruby-stackoverflow.gemspec
+++ b/ruby-stackoverflow.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency "httparty", "~> 0.11.0"
+  spec.add_runtime_dependency "httparty", "~> 0.13.3"
   spec.add_runtime_dependency  "json"
 
   spec.add_development_dependency "rspec", "~> 2.1"