var entries = jQuery('div.blogEntry').multiscrape({title: 'h3', abstract: '.abstract', date: '.pubdate'});

multiscrape.js

jQuery.fn.multiscrape = function(opts) {
    var scraped = [];
    this.each(function() {
        var $this = jQuery(this);
        var obj = {};
        jQuery.each(opts, function(key, value) {
            var val;
            if (jQuery.isFunction(value)) {
                val = value.apply($this);
            } else {
                val = $this.find(value).text();
            }
            if (val) {
                val = jQuery.trim(val);
            }
            obj[key] = val;
        });
        scraped.push(obj);
    });
    return scraped;
};