To add email or Feed Subscription Form to your blogger blog (blogspot) is very easy.
Just follow the next steps:
1. Log in into your Blogger account, Then go to Layout
2. Click on Add a Gadget Link:
3. From The pop-up window, scroll down and choose "HTML/JavaScript" option:
4. Paste this Following code Inside the Empty box:
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<style>
.hl-email{
background:url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipc7DN3JqpfFzcYyxVivsIWBBSycrs2abOiXBBlvIm6pMd5nAHuEzuPIHvpHPgmMvA3Gwqz6AjEYqKBGlwlfCzPiFIQbCv0mXAOGBoDKGC1IhmFc5drowz4LmA_Q2WdeQ2NxMrW06dx_4/s1600/mail.png) no-repeat 0px 12px ;
width:300px;
padding:10px 0 0 55px;
float:left;
font-size:1.4em;
font-weight:bold;
margin:0 0 10px 0;
color:#686B6C;
}
.hl-emailsubmit{
background:#9B9895;
cursor:pointer;
color:#fff;
border:none;
padding:3px;
text-shadow:0 -1px 1px rgba(0,0,0,0.25);
-moz-border-radius:6px;
-webkit-border-radius:6px;
border-radius:6px;
font:12px sans-serif;
}
.hl-emailsubmit:hover{
background:#E98313;
}
.textarea{
padding:2px;
margin:6px 2px 6px 2px;
background:#f9f9f9;
border:1px solid #ccc;
resize:none;
box-shadow:inset 1px 1px 1px rgba(0,0,0,0.1);
-moz-box-shadow:inset 1px 1px 1px rgba(0,0,0,0.1);
-webkit-box-shadow:inset 1px 1px 1px rgba(0,0,0,0.1); font-size:13px;
width:130px;
color:#666;}
</style>
<div class="hl-email">
Subscribe via Email <form action="http://feedburner.google.com/fb/a/mailverify" id="feedform" method="post" target="popupwindow" onsubmit="window.open('http://feedburner.google.com/fb/a/mailverify?uri=helplogger', 'popupwindow', 'scrollbars=yes,width=550,height=520');return true">
<input gtbfieldid="3" class="textarea" name="email" onblur="if (this.value == "") {this.value = "Enter email address here";}" onfocus="if (this.value == "Enter email address here") {this.value = "";}" value="Enter email address here" type="text" />
<input type="hidden" value="helplogger" name="uri"/><input type="hidden" name="loc" value="en_US"/>
<input class="hl-emailsubmit" value="Submit" type="submit" />
</form>
</div>
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5.Save it and Enjoy It.....
Have a Nice Day...