mofigan

javascript:
(function(){
  var l=location.href;
  l=prompt('URL',l);
  var u='http://megalodon.jp/?url='+escape(l);
  with(window.open().document){
    location.href=u;
    close();
  }
}

mofigan

javascript:(function(){
  function tim(){
    ele.parentNode.removeChild(ele);
  }
  var ele=document.createElement('textarea');
  ele.style.width='100%';
  ele.value='<a href='+location.href+'>'+document.title+'</a>';
  document.body.insertBefore(ele,document.body.firstChild);
  ele.focus();
  ele.select();

mofigan

javascript:
(function(){
  if(location.href.match(/twitter\.com\/(.+?)\//)){
    var id=RegExp.$1;
    var s=document.getElementsByTagName('span');
    for(var i=0;i<s.length;i++){
      if(s[i].getAttribute('class')=='entry-content'){
        var u='http://twitter.com/home?status=';
        u+=encodeURIComponent('RT @'+id+': '+(s[i].innerText||s[i].textContent));
        location.href=u;