(function () {
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        gads.async = true;
        gads.type = 'text/javascript';
        var useSSL = 'https:' == document.location.protocol;
        gads.src = (useSSL ? 'https:' : 'http:') +
                '//www.googletagservices.com/tag/js/gpt.js';
        var node = document.getElementsByTagName('script')[0];
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var googletag = googletag || {};
googletag.cmd = googletag.cmd || [];

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pbjs.que = pbjs.que || [];

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apstag.init({
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var mappingArticleTop = googletag.sizeMapping().
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var mappingArticleRepeat = googletag.sizeMapping().
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        addSize([0, 0], [[1, 2], [300, 250]]).
        build();

var mappingArticleSidebar1 = googletag.sizeMapping().
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        build();

var mappingArticleSidebar2 = googletag.sizeMapping().
        addSize([0, 0], [[160, 600], [300, 600]]).
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var mappingArticleBottom = googletag.sizeMapping().
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googletag.defineSlot('/1006371/Article_Top', [], 'Article_Top').defineSizeMapping(mappingArticleTop).addService(googletag.pubads());
        googletag.defineSlot('/1006371/Article_Repeat_1', [], 'Article_Repeat_1').defineSizeMapping(mappingArticleRepeat).addService(googletag.pubads());
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        googletag.defineSlot('/1006371/Article_Repeat_4', [], 'Article_Repeat_4').defineSizeMapping(mappingArticleRepeat).addService(googletag.pubads());
        googletag.defineSlot('/1006371/Article_Repeat_5', [], 'Article_Repeat_5').defineSizeMapping(mappingArticleRepeat).addService(googletag.pubads());
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        googletag.defineSlot('/1006371/NextMillennium_1x1', [1, 1], 'NextMillennium_1x1').addService(googletag.pubads());
        googletag.defineSlot('/1006371/OOP_1', [1, 1], 'OOP_1').addService(googletag.pubads());
        googletag.defineSlot('/1006371/OOP_2', [1, 1], 'OOP_2').addService(googletag.pubads());
        googletag.defineSlot('/1006371/OOP_3', [1, 1], 'OOP_3').addService(googletag.pubads());

googletag.pubads().setTargeting('post_id', '20557');
        googletag.pubads().setTargeting('post_cats', ['Fun']);
        googletag.pubads().setTargeting('is_testing', 'no');

googletag.pubads().collapseEmptyDivs(true);
        googletag.pubads().setCentering(true);

var SECONDS_TO_WAIT_AFTER_VIEWABILITY = 45;

googletag.pubads().addEventListener('impressionViewable', function(event) {
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            if (slot.getTargeting(REFRESH_KEY).indexOf(REFRESH_VALUE) > -1) {
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        });

googletag.enableServices();
});

var bidTimeout = 2000;

var width = (window.innerWidth > 0) ? window.innerWidth : screen.width;
if (width >= 1185) {
var apstagSlots = [{slotID:"Article_Top",slotName:"/1006371/Article_Top",sizes:[[728, 90]]},{slotID:"Article_Repeat_1",slotName:"/1006371/Article_Repeat_1",sizes:[[728, 90]]},{slotID:"Article_Repeat_2",slotName:"/1006371/Article_Repeat_2",sizes:[[728, 90]]},{slotID:"Article_Repeat_3",slotName:"/1006371/Article_Repeat_3",sizes:[[728, 90]]},{slotID:"Article_Repeat_4",slotName:"/1006371/Article_Repeat_4",sizes:[[728, 90]]},{slotID:"Article_Repeat_5",slotName:"/1006371/Article_Repeat_5",sizes:[[728, 90]]},{slotID:"Article_Bottom",slotName:"/1006371/Article_Bottom",sizes:[[728, 90]]},{slotID:"Article_Sidebar_1",slotName:"/1006371/Article_Sidebar_1",sizes:[[300, 250]]},{slotID:"Article_Sidebar_2",slotName:"/1006371/Article_Sidebar_2",sizes:[[160, 600], [300, 600]]}];
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}

var width = (window.innerWidth > 0) ? window.innerWidth : screen.width;
	if (width >= 1185) {
		var Article_Top = {code:"Article_Top",sizes:[[728, 90]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148939"}},{bidder:"ix",params:{siteId:"216528",size:[728, 90]}},{bidder:"sovrn",params:{tagid:"516913"}}]};
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		var Article_Repeat_2 = {code:"Article_Repeat_2",sizes:[[1, 2], [728, 90]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148955"}},{bidder:"ix",params:{siteId:"216530",size:[728, 90]}},{bidder:"sovrn",params:{tagid:"516915"}}]};
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		var Article_Repeat_5 = {code:"Article_Repeat_5",sizes:[[1, 2], [728, 90]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148962"}},{bidder:"ix",params:{siteId:"216533",size:[728, 90]}},{bidder:"sovrn",params:{tagid:"516918"}}]};
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		var Article_Repeat_3 = {code:"Article_Repeat_3",sizes:[[1, 2], [300, 250]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148957"}},{bidder:"ix",params:{siteId:"216539",size:[300, 250]}},{bidder:"sovrn",params:{tagid:"516925"}}]};
		var Article_Repeat_4 = {code:"Article_Repeat_4",sizes:[[1, 2], [300, 250]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148959"}},{bidder:"ix",params:{siteId:"216540",size:[300, 250]}},{bidder:"sovrn",params:{tagid:"516926"}}]};
		var Article_Repeat_5 = {code:"Article_Repeat_5",sizes:[[1, 2], [300, 250]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148962"}},{bidder:"ix",params:{siteId:"216541",size:[300, 250]}},{bidder:"sovrn",params:{tagid:"516927"}}]};
		var Article_Bottom = {code:"Article_Bottom",sizes:[[300, 250]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148941"}},{bidder:"sovrn",params:{tagid:"516928"}}]};
		var Article_Sidebar_1 = {code:"Article_Sidebar_1",sizes:[[300, 250]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148943"}},{bidder:"ix",params:{siteId:"216542",size:[300, 250]}}]};
		var Article_Sidebar_2 = {code:"Article_Sidebar_2",sizes:[[160, 600], [300, 600]],bids:[{bidder:"openx",params:{delDomain:"tiphero-d.openx.net",unit:"539148944"}},{bidder:"ix",params:{siteId:"216543",size:[160, 600]}},{bidder:"ix",params:{siteId:"216543",size:[300, 600]}},{bidder:"sovrn",params:{tagid:"516929"}}]};
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var adUnits = [Article_Top,Article_Repeat_1,Article_Repeat_2,Article_Repeat_3,Article_Repeat_4,Article_Repeat_5,Article_Bottom,Article_Sidebar_1,Article_Sidebar_2];

function fetchHeaderBids(){var e=["a9","prebid"],t={adserverRequestSent:!1};function s(s){!0!==t.adserverRequestSent&&("a9"===s?t.a9=!0:"prebid"===s&&(t.prebid=!0),e.map(function(e){return t[e]}).filter(Boolean).length===e.length&&n())}function n(){!0!==t.adserverRequestSent&&(t.adserverRequestSent=!0,pbjs.adserverRequestSent=!0,t.sendAdserverRequest=!0,googletag.cmd.push(function(){apstag.setDisplayBids(),pbjs.setTargetingForGPTAsync(),googletag.pubads().refresh()}))}e.forEach(function(e){t[e]=!1}),function(e,t,n){apstag.fetchBids({slots:e,timeout:n},function(e){s("a9")}),pbjs.que.push(function(){pbjs.addAdUnits(t),pbjs.requestBids({bidsBackHandler:function(e){s("prebid")}})})}(apstagSlots,adUnits,bidTimeout),window.setTimeout(function(){n()},bidTimeout)}

fetchHeaderBids(apstagSlots, adUnits, bidTimeout);

10 Websites That Buy Back Textbooks and Offer Free Shipping

With most college graduations occurring this month, students will undoubtedly have some extra books in their possession that they’ll probably never use again. What better way to make use of these books than to sell them for cash and not have to waste money on shipping? Take a look at some websites that will buy books from you and pay you back for shipping costs:

Barnes and Noble: get instant cash for your books by selling them to Barnes and Noble. All you’ll need to get free shipping is the ISBN number and at least $10 worth of books to sell.
Borders: Borders now uses Alibris.com as its purchasing agency, but they do sell, buy and rent textbooks. Use the ISBN to get a quote, and if you like what you see, drop your box off at UPS for free delivery.
WeBuyTextbooks: this site just buys books – it doesn’t rent or sell them. Use your books’ ISBN numbers for estimates and then print out your packing list and mailing label for free shipping through the US Postal Service.
MyBookBuyer: just like WeBuyTextbooks, this company only buys books. Payment can be received via PayPal or check within 3 business days of receipt.

Find 6 more sites that will buy back your books and offer you free shipping over at the Go Frugal Blog’s Top 10 Textbook Buy-back Websites With Free Shipping.

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