diff --git a/src/common/time.ts b/src/common/time.ts
index 29cad1e..c20bf03 100644
--- a/src/common/time.ts
+++ b/src/common/time.ts
@@ -37,25 +37,25 @@ export function readableTime(timems: number): string {
   const time = Math.floor(timems);
 
   if (time < 60) {
-    return zf(time) + 's';
+    return zf(Math.floor(time)) + 's';
   } else if (time < 3600) {
-    return zf(time / 60) +
-      'm ' + zf(time % 60) + 's';
+    return zf(Math.floor(time / 60)) +
+      'm ' + zf(Math.floor(time % 60)) + 's';
   } else if (time < 86400) {
-    return zf(time / 3600) +
-      'h ' + zf((time % 3600) / 60) +
-      'm ' + zf((time % 3600) % 60) + 's';
+    return zf(Math.floor(time / 3600)) +
+      'h ' + zf(Math.floor((time % 3600) / 60)) +
+      'm ' + zf(Math.floor((time % 3600) % 60)) + 's';
   } else if (time < 31536000) {
-    return (time / 86400) +
-      'd ' + zf((time % 86400) / 3600) +
-      'h ' + zf((time % 3600) / 60) +
-      'm ' + zf((time % 3600) % 60) + 's';
+    return (Math.floor(time / 86400)) +
+      'd ' + zf(Math.floor((time % 86400) / 3600)) +
+      'h ' + zf(Math.floor((time % 3600) / 60)) +
+      'm ' + zf(Math.floor((time % 3600) % 60)) + 's';
   } else {
-    return (time / 31536000) +
-      'y ' + zf((time % 31536000) / 86400) +
-      'd ' + zf((time % 86400) / 3600) +
-      'h ' + zf((time % 3600) / 60) +
-      'm ' + zf((time % 3600) % 60) + 's';
+    return (Math.floor(time / 31536000)) +
+      'y ' + zf(Math.floor((time % 31536000) / 86400)) +
+      'd ' + zf(Math.floor((time % 86400) / 3600)) +
+      'h ' + zf(Math.floor((time % 3600) / 60)) +
+      'm ' + zf(Math.floor((time % 3600) % 60)) + 's';
   }
 }
 
diff --git a/src/plugin/plugin.ts b/src/plugin/plugin.ts
index 682fa15..ea2a841 100644
--- a/src/plugin/plugin.ts
+++ b/src/plugin/plugin.ts
@@ -11,6 +11,7 @@ export interface IPlugin {
 
 export class Plugin implements IPlugin {
   public service: Service | null = null;
+  protected on = this.addEventListener;
 
   constructor(
     public manifest: IPluginManifest,
diff --git a/src/types/message-format.ts b/src/types/message-format.ts
index 8fc1371..655b20d 100644
--- a/src/types/message-format.ts
+++ b/src/types/message-format.ts
@@ -19,8 +19,11 @@
   or any hex value prepended with #
 
   Formats:
+    action
+    code
+    multicode (multiline code)
     bold
-    italic
+    italics
     emphasis
     strike
     underline
@@ -211,3 +214,74 @@ export class Formatter {
   }
 }
 
+export class HTMLFormatter extends Formatter {
+  public formatting: Method = {
+    code: {start: '<code>', end: '</code>'},
+    action: {start: '<i>', end: '</i>'},
+    bold: {start: '<b>', end: '</b>'},
+    italics: {start: '<i>', end: '</i>'},
+    emphasis: {start: '<em>', end: '</em>'},
+    underline: {start: '<u>', end: '</u>'},
+    multicode: {start: '<pre><code>', end: '</code></pre>'},
+  };
+
+  constructor() {
+    super(true, true);
+  }
+
+  public color(color: string, msg: string): string {
+    return `<span style="color:${color};">${msg}</span>`;
+  }
+
+  public format(method: string, msg: string): string {
+    if (!this.formatting[method]) {
+      return msg;
+    }
+
+    if (this.formatting[method].start && this.formatting[method].end) {
+      return this.formatting[method].start + msg + this.formatting[method].end;
+    } else {
+      return this.formatting[method] + msg + this.formatting[method];
+    }
+  }
+
+  public strip(msg: string): string {
+    return msg.replace(/<\/?[^>]+(>|$)/g, '');
+  }
+}
+
+export class MarkdownFormatter extends Formatter {
+  public formatting: Method = {
+    code: {start: '`', end: '`'},
+    bold: {start: '**', end: '*'},
+    action: {start: '*', end: '*'},
+    italics: {start: '*', end: '*'},
+    emphasis: {start: '*', end: '*'},
+    underline: {start: '__', end: '__'},
+    multicode: {start: '```', end: '```'},
+  };
+
+  constructor() {
+    super(true, false);
+  }
+
+  public color(color: string, msg: string): string {
+    return msg;
+  }
+
+  public format(method: string, msg: string): string {
+    if (!this.formatting[method]) {
+      return msg;
+    }
+
+    if (this.formatting[method].start && this.formatting[method].end) {
+      return this.formatting[method].start + msg + this.formatting[method].end;
+    } else {
+      return this.formatting[method] + msg + this.formatting[method];
+    }
+  }
+
+  public strip(msg: string): string {
+    return msg;
+  }
+}
diff --git a/src/types/message.ts b/src/types/message.ts
index 5ceac50..31b1efc 100644
--- a/src/types/message.ts
+++ b/src/types/message.ts
@@ -1,8 +1,5 @@
-import { IPlugin } from '../plugin/plugin';
 import { Protocol } from './protocol';
 
-// TODO: Source specification to support plugin services.
-
 export enum EMessageType {
   message = 0,
   roomJoin = 1,
@@ -12,24 +9,89 @@ export enum EMessageType {
   edit = 5,
 }
 
+/**
+ * Message target specification. ID and name are mandatory,
+ * and they could be the same, depending on the protocol.
+ */
 export interface IMessageTarget {
   id: string;
   name: string;
   server?: string;
 }
 
+/**
+ * Message format
+ */
 export interface IMessage {
+  /**
+   * Uniquely identify this message
+   */
   id?: any;
+  /**
+   * Type of the message. See EMessageType
+   */
   type: EMessageType;
+  /**
+   * Data included in the message. Could be an object or a string.
+   * Use `text` to get text value.
+   */
   data: any;
+  /**
+   * Text value of the message.
+   */
+  text: string;
+  /**
+   * Source protocol of the message.
+   */
   source: Protocol;
+  /**
+   * If the sender has not registered themselves.
+   * Applicable to, for example, NickServ of IRC.
+   */
   guest?: boolean;
+  /**
+   * The room where the message was sent in.
+   */
   target?: IMessageTarget;
+  /**
+   * Information about the sender.
+   */
   sender?: IMessageTarget;
+  /**
+   * Full ID of the sender (`plugin/protocol/id`).
+   */
   fullSenderID?: string;
+  /**
+   * Full ID of the room (`plugin/protocol/(s:server)/id`).
+   */
   fullRoomID?: string;
+  /**
+   * The time the message was sent.
+   */
   time: Date;
+  /**
+   * True if the message is a direct message to the bot.
+   */
   direct?: boolean;
+  /**
+   * True when resolve has been called at least once.
+   */
   resolved: boolean;
+  /**
+   * Bot's response to this message. Will be passed to the protocol,
+   * which usually sends it through the formatter and then to the service
+   * it is connected to.
+   * @param args Message data
+   */
   resolve(...args: any[]): void;
+
+  /**
+   * Insert a mention into the response
+   * @param target UserTarget to mention (i.e. `msg.sender`)
+   */
+  mention(target: IMessageTarget): string;
+
+  kick?(reason: string): void;
+  ban?(reason: string): void;
+  mute?(reason: string): void;
 }
diff --git a/src/types/protocol.ts b/src/types/protocol.ts
index 4adb07a..60ce8b1 100644
--- a/src/types/protocol.ts
+++ b/src/types/protocol.ts
@@ -2,7 +2,7 @@ import { randomBytes } from 'crypto';
 
 import { EventEmitter } from 'events';
 import { IPlugin } from '../plugin';
-import { IMessage } from './message';
+import { IMessage, IMessageTarget } from './message';
 import { Formatter } from './message-format';
 
 export class Protocol extends EventEmitter {
@@ -22,6 +22,12 @@ export class Protocol extends EventEmitter {
   // This should be set to true when the protocol fails for any reason
   public failed = false;
 
+  // This should identify the bot itself
+  public me: IMessageTarget = {
+    id: '',
+    name: '',
+  };
+
   constructor(public plugin: IPlugin, public config: any) {
     super();
     this.passEvents();